Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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julia surveyed her friends to find the number of hours they spend on ho…
# Explanation: ## Step1: Calculate population mean The population has \(4\times5 = 20\) data - points. The sum of all population data is \(4 + 5+3 + 1+3+2+2+3+5+7+3+6+3+0+1+5+0+4+…
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una was asked to write about predicting population means by taking the …
The best prediction of the population mean is the value that falls between the least and greatest sample means.; It is unlikely that the population mean will be the least or great…
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use the text to compare and contrast mandarin and cantonese. if you wan…
Is a dialect of Chinese: Mandarin - Yes, Cantonese - Yes Has four tones: Mandarin - Yes, Cantonese - No Is an official language in the United Nations: Mandarin - Yes, Cantonese - …
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question 9 1 pts which of the following is not a reason why the name ki…
Question 9: The term kinesiology has been the most widely used name for the field throughout history. Question 10: North American Academy of Kinesiology and Physical Education
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question. complete the frequency table for the following set of data. 1…
| Interval | Tally | Frequency | |--|--|--| | 0 - 2 | |||| 3 | | 3 - 5 | | 1 | | 6 - 8 | |||| 3 | | 9 - 11 | |||| 3 | | 12 - 14 | |||| 3 |
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group activity: exponent relay challenge work in groups of 3 - 4 studen…
1. 9 2. 4 3. $\sqrt[5]{16}$ 4. $\frac{1}{9}$ 5. 7
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first thoughts choose one of these questions, and write your response. …
1. (a) As the fight for ratification began, the term "federalist" came to represent those who supported the ratification of the United States Constitution and a stronger federal g…
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question complete the frequency table for the following set of data. yo…
| Interval | Tally | Frequency | |--|--|--| | 0 - 1 | || 5 | | 2 - 3 | || 3 | | 4 - 5 | || 6 | | 6 - 7 | || 6 |
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12, 26, 18, 8, 80, 14, 56, 16 the data above shows the number of points…
The difference in sample means is due to sampling variability. Different subsets of players (samples) from the same population (all players on the team) were selected, and these s…
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the sample means for three samples of 20 are shown in the table. comput…
Sample 1: 1.5 Sample 2: 2.5 Sample 3: 5.5
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sample sample mean 1 154 2 121 3 160 4 135 5 140 6 134 7 129 looking at…
136
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population data if serena selects 4 samples from the table, which row w…
The row that gives the largest mean: Third row The row that gives the smallest mean: Second row The actual population mean will be between: $1$ and $20$
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thesis and evidence historical writing is a type of informational text …
1. - Numerical Data: No examples given as text not fully available; Idea it supports: N/A - Historical Details: No examples given as text not fully available; Idea it supports: N/…
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will all random samples from a given population have the same mean? pro…
No, all random samples from a given population will not have the same mean.
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chase asked the students in his class how many hours they studied durin…
19
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question 4 higher revenue does not always mean higher profit because...…
Costs must also be controlled
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6. the number of points jadas basketball team scored in their games hav…
The mean of 44 points is the average number of points scored per game by Jada's team. The standard deviation of about 15.7 points shows the variability of scores around the mean.
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sample sample mean 1 16.8 2 12.3 3 19.0 4 17.5 5 18.2 6 17.5 looking at…
17.3
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question 9 of 11 national income: how it is earned — questions for revi…
that economic profits will be zero
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b. when 12 is removed from the data set, does mean remain the same? exp…
It depends. If 12 is equal to the original mean of the data - set, the mean remains the same; otherwise, it changes.
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how many times did the team score less than 2 goals? answer times
4
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sample sample mean 1 16.8 2 12.3 3 19.0 4 17.5 5 18.2 6 17.5 looking at…
12.3
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what was the most time a student in this class could have spent watchin…
179
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what was the most common interval of commute times? frequency (number o…
20 - 29 minutes
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what is the goal of effective marketing research studies? o to present …
to collect data that will lead to effective marketing actions
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2.86 1.88 1.84 2.19 3.11 1.75 2.16 3.81 2.62 3.1 3.43 2.74 (a) find the…
(c) \(2.634\) (i) \(0.447644\)
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consider these sample means for the number of weekend hours spent study…
- The variation in the sample means is less than 5. - The actual population mean most likely will be between 4 and 8. - The sample means can be used to make predictions about the …
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students were asked how many hours during the weekend they studied for …
Mean of samples in row 1: 8 Mean of samples in row 2: 5 Mean of samples in row 3: 6 Mean of samples in row 4: 4
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there are 30,000 adults living in palm city. in examining attitudes tow…
$12941$
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when i was about eight years old, i went to live with my father (your g…
A. It was a nickname that meant "little mischievous one," which her father gave to her.
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question 5. find the word consequences in paragraph 44. use context clu…
The dictionary definition of "consequences" is the results or effects that follow an action. In the context of paragraph 44, the sergeant - major is cautioning about the potential…
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use the image to answer the question. letitia tells her son, evan, that…
Yellow: \(\frac{3}{10}\), Green: \(\frac{1}{5}\), Purple: \(\frac{1}{10}\), Pink: \(\frac{2}{5}\)
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a frequency distribution table using data this list of 16 random number…
| Class | Frequency | Rel.Freq | | ---- | ---- | ---- | | 20 - 29 | 3 | 0.1875 | | 30 - 39 | 4 | 0.2500 | | 40 - 49 | 3 | 0.1875 | | 50 - 59 | 6 | 0.3750 |
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based on the data, what is the amount of time cadence will most likely …
4-6 minutes
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classify each of the sampling procedures below. sampling procedure a re…
1. Simple - random sampling 2. Systematic sampling 3. Stratified sampling 4. Cluster sampling
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bag of apples average apple weight (lbs) 1 0.9 2 1.0 3 0.8 4 1.2 5 0.9 …
0.8 lb and 1.2 lbs.
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measures of dispersion ten friends kept track of how many times they se…
Range: 15 Sample standard deviation: 5.53
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ice cream consumption vs. temperature what conclusion can you draw base…
There is a positive correlation between temperature and ice - cream consumption per person.
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which of the following random variables are continuous variables and wh…
a) discrete b) continuous c) discrete d) discrete e) continuous
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interpreting bar graphs the bar graph above shows the number of compute…
How many computers did they sell on Thursday? 10 How many computers did they sell in total over the four days? 28 What percent of the total number of computers sold were sold on T…
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wayne gretzky, a retired professional hockey player, played 20 seasons …
a. (Since no data is given, we can't give exact values for \(Q_1,Q_2,Q_3\)). Interpretation of quartiles: B. b. (Since no data is given, we can't give an exact value for \(IQR\)).…
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identify the histogram for the frequency distribution below. | data | f…
By comparing the frequencies in the table with the heights of the bars in each histogram option, we can identify the correct histogram. Without the option - specific naming, we de…
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the graph of a uniform distribution is shaped like a pyramid an exponen…
C. a straight line
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in this problem, you will use desmos to compute a few statistics. • ope…
Mean: 63.6 Median: 63.5
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statistics were gathered on the number of homicides committed with guns…
First blank: time - series; Second blank: a downward trend
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part 1: getting ready to write an expository paragraph that includes st…
No specific answer is required as the task is to underline well - written sections in the given paragraph.
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tia performed an experiment in which she flipped a coin 100 times. the …
The number 100 represents the total number of trials in the experiment. 49/100 = 49%. The 49% represents the experimental probability of the coin landing heads up.
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determine whether the variable given is qualitative, quantitative - dis…
qualitative since this variable would yield categories
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match the graph to the description that best fits. use each only once. …
a. Bimodal b. Skewed right c. Skewed left d. Symmetric
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in this problem, you will use desmos to compute a few statistics. • ope…
62.575
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in this problem, you will use desmos to compute a few statistics. • ope…
Part 1: $62.385$ Part 2: $63.75$ Part 3: $63.1$ Part 4: The distribution will probably be skewed to the left.
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analyze first names 1. explain what does kofis name mean? 2. vocabulary…
1. Kofi significa nacido el viernes. 2. Mis amigos se llaman Daniela y Marilyn. Daniela tiene un nombre único.
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the data set represents the number of errors on a typing test. 5 6 8 8 …
a. Median: 9. Half of the people taking the typing test made 9 or fewer errors, and half made 9 or more errors. b. IQR: 2
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in this problem, you will use desmos to compute a few statistics. • ope…
$63.1$
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which of the dot plots shows a symmetric distribution? a. b. c. d.
B.
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match the name of the sampling method descriptions given. situations - …
1. a. Stratified 2. e. Simple Random 3. d. Systematic 4. c. Cluster 5. b. Convenience
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in this problem, you will use desmos to compute a few statistics. • ope…
Mean: \(62.385\) Median: \(63.75\)
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student mean word length 1 7.1 2 4.5 3 6.9 4 5.2 5 5.0 6 4.7 7 6.1 8 4.…
Range of average word lengths: 2.6 Variation between sample means: small
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the number of people who survived the titanic based on class and gender…
a) $0.314$ b) $0.307$ c) $0.413$ d) $0.127$ e) $0.494$
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in this problem, you will use desmos to compute a few statistics. • ope…
62.385
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for the sample data shown, answer the questions. round to 2 decimal pla…
Mean: $16.61$ Median: $19.45$ Sample standard deviation: $7.74$
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in this problem, you will use desmos to compute a few statistics. • ope…
The distribution will probably be skewed to the right.
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d) what is the probability that a survivor was a male and in the 3rd cl…
d) Without data, unable to provide a numerical answer. e) Without data, unable to provide a numerical answer.
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in this problem, you will use desmos to compute a few statistics. • ope…
The distribution will probably be skewed to the left.
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favorite sport | |basketball|football|soccer|baseball|other/hate sports…
$22.5\%$
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4. listed below are sorted duration times (seconds) of eruptions of the…
a) The problem encountered when rounding the class - width calculated as above is that the upper - class limit of the last class will be greater than the maximum value in the data…
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movie genre superhero comedy drama 6th grade 11 18 5 7th grade 12 19 12…
10
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grocery options | | store | online | total | |--|--|--|--| | women | 20…
11
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consider the below normal curves. determine which normal curve has the …
the means are equal blue curve (dashed curve)
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pets survey | | pets | no pets | total | | ---- | ---- | ---- | ---- | …
21
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in this problem, you will use desmos to compute a few statistics. open …
64.05
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screen time | | above | below | |--|--|--| | less than 4 hours | 9 | 6 …
37
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in this problem, you will use desmos to compute a few statistics. • ope…
$63.615$
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consider the following sample data, which represent weights of sea muss…
2.3
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question 2 2 pts vocabulary check: previewing the characters when you r…
A. Brave and courageous
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consider the following sample data, which represent weights of sea muss…
$2.3$
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in a large population, 66% of the people have been vaccinated. if 5 peo…
$0.9955$
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suppose that a rap group called rg2 has released its first cd with live…
D. The recording label should expand the production and distribution of RG2's first CD
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5. the box plot represents the distribution of speeds, in miles per hou…
a. The smallest value is 4 miles per hour. It is the speed of the slowest car among the 100 cars. b. The largest value is 48 miles per hour. It is the speed of the fastest car amo…
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consider the following sample data, which represent weights of sea muss…
$2.23$
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karen took three samples from a population of students to measure their…
Sample 1: 6 Sample 2: 13 Sample 3: 1
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consider the histogram shown below. determine whether the mean is less …
The mean is greater than the median since the distribution is skewed to the right.
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2. the dot plot displays the number of bushes in the yards for houses i…
8
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consider the following sample data, which represent weights of sea muss…
Part 1 of 5: 2.3 Part 2 of 5: 2.3 Part 3 of 5: 2.3
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1. select all the statistical questions. a. what is the typical amount …
A. What is the typical amount of rainfall for the month of June in the Galapagos Islands? D. How many songs does the class usually listen to each day? G. How long does it typicall…
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consider the following sample data, which represent weights of sea muss…
2.35
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use the appropriate formulas and methods to answer the following questi…
$2.3$
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determine what the key terms refer to in the following survey. to deter…
Sample: b. The 29 Oxnard College students who were surveyed Statistic: c. The average number of classes of those 29 students in the sample is 3 Parameter: a. The average number of…
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2.5 points monotheism means that a only one god is worshiped. b two or …
A. only one god is worshiped.
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text messages sent what is the mean of this population? the sum of all …
15
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consider the following sample data, which represent weights of sea muss…
Part 1: $2.04$ Part 2: $2.2$ Part 3: $2.2$ Part 4: $2.2$ Part 5: The distribution will probably be skewed to the left.
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on a recent biology quiz, the class mean was 22 with a standard deviati…
a. 2.5000 b. 1.6667 c. Biology quiz d. 16.364 e. 6.585 f. Biology quiz
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consider the following sample data, which represent weights of sea muss…
$2.2$
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consider the following sample data, which represent weights of sea muss…
Mean: $2.13$ Mode: $2.2$
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in the muslim faith, the word \allah\ means a god. b unity. c praise. d…
A. God
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consider the following sample data, which represent weights of sea muss…
$2.04$
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170 people are asked how many siblings they have? the (incomplete) resu…
| # of Siblings | Frequency | Relative Frequency | Cumulative Frequency | | ---- | ---- | ---- | ---- | | 0 | 32 | 0.1882 | 32 | | 1 | 39 | 0.2294 | 71 | | 2 | 37 | 0.2176 | 108 |…
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consider the following sample data, which represent weights of sea muss…
Part 1: 2.2 Part 2: 2.25 Part 3: 2.3 Part 4: 2 Part 5: The distribution will probably be skewed to the left.
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consider the following sample data, which represent weights of sea muss…
Part 1: 2.15 Part 2: 2.2 Part 4: 2
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the deaths attributed to uv radiation have a mean of 168.4 with a stand…
588 deaths would be unusual since it is more than two standard deviations from the mean.