Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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question 9 · 1 point a growing debt/gdp ratio could mean that, all else…
the government is running large budget deficits
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kenji is baking a loaf of bread and 6 bagels. he has 21 teaspoons of se…
2 or fewer
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video lesson 5.2 example 6 – using a table to find conditional probabil…
\(\frac{5}{29}\)
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video lesson 5.2 example 4 - finding the probability of dependent event…
\(\frac{9}{35}\)
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video lesson 5.2 example 3 – finding the probability of independent eve…
\(\frac{1}{4}\) (assuming spinner with numbers 1 - 4, equally likely; adjust if spinner has different range/numbers)
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9 select all the correct answers. which of the following statements are…
- Full employment is a macroeconomic goal. - Inflation is a rise in the prices of goods and services.
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the employees at peters construction monitored the number of cracked wi…
| Stem | Leaf | |------|------| | 5 | 1 2 3 6 6 9 | | 6 | 1 1 2 7 9 9 | | 7 | 0 2 3 3 | | 8 | 1 1 1 4 9 | | 9 | 2 4 5 |
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video lesson 5.2 example 1 & 2 - determining whether events are indepen…
The events of randomly selecting an even number first and randomly selecting a 4 second are not independent.
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an old bone contains 80% of its original carbon - 14. use the half - li…
\(0.8\) (or \(\frac{4}{5}\))
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peter went to his school’s swim meet to cheer on the team. the scoreboa…
The first box plot (top one)
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1. a bag contains six pieces of paper, numbered 1 through 6. a student …
The events of randomly selecting a 5 first and randomly selecting an odd number second are independent events.
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6 multiple answer 2 points the direction of the relationship in a bivar…
A. positive if the two variables vary in the same direction. C. either positive or negative when the variables are measured at the ordinal or interval - ratio level.
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the employee at the department store counted the number of ties on each…
Stem 0: Leaf 3 5 Stem7: Leaf7 9 Completed stem-and-leaf plot: | Stem | Leaf | |------|------| | 0 | 3 5 | | 1 | | | 2 | 5 | | 3 | 4 | | 4 | 0 | | 5 | 5 | | 6 | 3 3 5| |7 |7 9 |
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drawing conclusions 13. you roll a six - sided die 60 times. the table …
The number on the die with 4 dots (the one with four dots, corresponding to the count of 10 in the table) has the experimental probability (in terms of the number of rolls) equal …
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at the end of the red river fishing contest, the judge measured the len…
The top box plot (first one)
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5 multiple choice 1 point a bivariate relationship between two variable…
negative relationship
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a pottery factory kept track of the number of broken plates per shipmen…
Set the height of the bar for the 21-30 interval to 15.
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solve the following problems. (see example 3) 9. you roll two six - sid…
s: (a) \(\frac{11}{12}\) (b) \(\frac{13}{18}\)
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a pet store owner had his staff count the number of fish in each tank. …
Stem 5 leaf: 4 5 8 9 Stem 6 leaf: 3 7 7 Completed stem-and-leaf plot: | Stem | Leaf | |------|------| | 1 | 4 | | 2 | 1 4 8 | | 3 | 7 | | 4 | 4 9 | | 5 | 4 5 8 9 | | 6 | 3 7 7 | |…
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4 multiple choice 1 point in a bivariate table, the row and column tota…
C. marginals
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find the probability given the situation. (see example 2) 7. a game sho…
\(\frac{5}{16}\)
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evaluate independent practice lesson 5.1 homework complete the problems…
48
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teacher voice – you can use information given in graphs to solve real-w…
The probability that a pet - owning adult chosen at random has a bird is approximately \( 0.07 \) (or about \( 7\% \)).
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3. what is the main purpose of complications in a storys narrative stru…
B. Complications create suspense and increase our interest in the outcome.
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video lesson 5.1 example 4 – finding an experimental probability 5. a s…
yellow
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video lesson 5.1 example 3 - finding probabilities of complements. find…
for Problem 3: \(\frac{5}{18}\)
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research question one: are there differences in the average agreement w…
One-way ANOVA is appropriate: it compares mean agreement (continuous, interval/ratio) across multiple U.S. geographic regions (categorical), matching the test’s design for ≥3 grou…
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deo lesson 5.1 example 2 - finding a theoretical probability. 2. a coin…
\(\frac{1}{4}\)
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writing template research question one: are there differences in the av…
One-way Analysis of Variance (ANOVA) is appropriate, as it tests for significant mean differences in agreement across multiple U.S. geographic regions.
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video lesson 5.1 example 1 - finding a sample space 1. you spin this sp…
There are 8 possible outcomes. The sample space is \(\{(1, H), (1, T), (2, H), (2, T), (3, H), (3, T), (4, H), (4, T)\}\).
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for earth day, lakewood high’s environmental club tracked the number of…
The line plot should have: - 4 Xs over the number 0 - 6 Xs over the number 1 - 3 Xs over the number 2 - 1 X over the number 3 - 9 Xs over the number 4 - 5 Xs over the number 5
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the following text is adapted from zora neale hurston’s 1921 short stor…
A. Get his mother to accept
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amandas p.e. class participated in a push-up competition, and amanda wr…
The completed stem-and-leaf plot has leaf 2 for stem 5 and leaf 4 for stem 9. | Stem | Leaf | |------|------| | 3 | 1 5 | | 4 | 8 | | 5 | 2 | | 6 | 4 | | 7 | 1 4 | | 8 | 5 7 | | 9…
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a. for each of the pairs, please select who tends to benefit more from …
a. men or women: women low income or high income: low income married or single: married b. revenue from the current Social Security tax is used to fund current payments.
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the local paint store offers 33 basic colors, each of which can be prep…
99
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use the theoretical method to determine the probability of the outcome …
\(\frac{1}{7}\)
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use the theoretical method to determine the probability of the given ou…
\(\frac{1}{3}\)
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question 4 of 10 what did the selective service act mean for american m…
B. They could be drafted into the army.
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read this excerpt from chapter 1 of the scarlet letter using comprehens…
The prison and cemetery were built early, with the cemetery expanding in size from its original plot.
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read this excerpt from chapter 1 of the scarlet letter using comprehens…
The prison and cemetery were built early, with the cemetery expanding in size from its original plot.
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pregunta 5 a local bakery sells cupcakes. the graph below shows the tot…
El punto \( (6, 18) \) significa que comprar 6 cupcakes tiene un costo total de 18 (unidades de moneda, como dólares o pesos).
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complete the statement \z = \ for each data value. a. a data value 0.2 …
a. \(z=-0.2\) b. \(z=-1.8\) c. \(z = 1.4\)
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read this excerpt from chapter 1 of the scarlet letter. finding it so d…
D. unfavorable, boding ill
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the scores on a psychology exam were normally distributed with a mean o…
The cutoff for a failing score was \(52\). Approximately \(2.5\%\) of the students failed.
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here is a scatter plot for a set of bivariate data. what would you esti…
-0.6
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nal examination nal examination 0 points possible answered: 8/12 questi…
\((0.695, 0.865)\)
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identifying literary devices led by three young black minorca pullets, …
allegory, to show similarities between the farm and the Soviet Union
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g inferences about the author’s purpose ree young black minorca pullets…
The author wants to portray the ruthlessness of a dictator.
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exam results for 100 students are given below. for the given exam resul…
D. The distribution is symmetric because the median is equal to the mean. The difference between the greatest and least scores is \(30\), which is relatively small compared to the…
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a random sample of students was surveyed and asked to list their grade …
| | Pets | No Pets | Total | |---|---|---|---| |6th grade|29|20|49| |7th grade|19|20|39| |8th grade|25|29|54| |Total|73|69|142|
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a random sample of students was surveyed and asked to list their grade …
\(62\%\)
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a random sample of people were surveyed on their favorite sport, as sho…
\(25\%\)
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a random sample of students was surveyed and asked to list their grade …
\(17\%\)
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a survey stopped men and women at random to ask them where they purchas…
\(20.0\%\)
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question 2 1 pts which of the following is not a reason why the name ki…
A. The term kinesiology has been the most widely used name for the field throughout history.
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a survey stopped men and women at random to ask them where they purchas…
| | Store | Online | Total | |---|---|---|---| | Women | \(35\) | \(20\) | \(55\) | | Men | \(29\) | \(14\) | \(43\) | | Total | \(64\) | \(34\) | \(98\) |
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a survey stopped men and women at random to ask them where they purchas…
| | Store | Online | Total | |---|---|---|---| | Women | \(35\) | \(20\) | \(55\) | | Men | \(29\) | \(14\) | \(43\) | | Total | \(64\) | \(34\) | \(98\) |
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remaining time: 14 minutes, 32 seconds. question completion status: 1 2…
Question 1: to understand and appraise Question 2: all of the above
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a survey asked a group of adults and youths if they prefer reading book…
| | Print | Electronic | Total | |---|---|---|---| | Youths | \(28\) | \(37\) | \(65\) | | Adults | \(26\) | \(22\) | \(48\) | | Total | \(54\) | \(59\) | \(113\) |
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question 19: use the table below to answer the question. average rating…
D. Battery Life
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a business magazine surveyed its readers about their commute times. com…
0
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caden counted the number of pieces of pepperoni on each pizza he made. …
7
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a survey asked a group of adults and youths if they prefer reading book…
| | Print | Electronic | Total | |---|---|---|---| | Youths | \(38\) | \(26\) | \(64\) | | Adults | \(21\) | \(35\) | \(56\) | | Total | \(59\) | \(61\) | \(120\) |
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question 16: in the graph below, the shaded areas represent recessions.…
B. Unemployment rates show a downward trend after a recession and an upward trend during a recession.
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a survey asked a random sample of students if they estimated they spent…
|Social Media|More|Less|Total| |---|---|---|---| |7th grade|21|24|45| |8th grade|28|19|47| |Total|49|43|92|
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the librarian at the public library counted the number of books on each…
\(31\)
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choosing the right graph for two variables josh wants to create a graph…
A. Scatter Plot
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match the person to the correct description richard oakes occupation of…
Richard Oakes - Occupation of Alcatraz Organizer Hank Adams - Author of the 20 Points Position Paper Richard "Dick" Wilson - Pine Ridge Inter - Tribal Council President Joseph Tri…
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choosing the right graph for two variables identify why someone may cho…
1. To examine one variable at a time individually.
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anthony counted the number of silver beads on each bracelet at livingst…
Yes, there are more bracelets with 10 - 19 silver beads.
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choosing the right graph for two variables identify why someone may cho…
To examine one variable at a time individually.
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choosing the right graph for two variables identify the correct type of…
scatter plot
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choosing the right graph for two variables josh wants to create a graph…
Scatter Plot
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choosing the right graph for two variables josh wants to create a graph…
C. Scatter Plot
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choosing the right graph for two variables identify the correct type of…
scatter plot
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choosing the right graph for one variable identify why a bar graph woul…
2. It allows for easier comparison between cities.
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a. gas lp 500 b. gas natural 400 c. electricidad 300 27. ¿cuánto tiempo…
Para la pregunta 27 (¿Cuánto tiempo tardó en bañarse?): - a. Más de 20 minutos (910) - b. Entre 10 y 20 minutos (450) - c. Entre 5 y 10 minutos (223) - d. Sólo 5 minutos (149) Par…
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25. de los siguientes aparatos electrónicos, ¿cuánto tiempo a la semana…
1546
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select the correct answer. how does the inclusion of the knocking in th…
D. The repeated knocking makes the characters uneasy.
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a survey asked a random sample of students if they estimated they spent…
|Social Media|More|Less|Total| |---|---|---|---| |7th grade|17|24|41| |8th grade|15|21|36| |Total|32|45|77|
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a survey stopped men and women at random to ask them where they purchas…
| Grocery Options | Store | Online | Total | | --- | --- | --- | --- | | Women | 28 | 17 | 45 | | Men | 34 | 11 | 45 | | Total | 62 | 28 | 90 |
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actual times (in seconds) recorded when statistics students participate…
\(56.3\)
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which is the most accurate way to estimate 22% of 487? \\(\frac{3}{4} \…
$\frac{1}{5}\times490$
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which is the most accurate way to estimate 45% of 61? \\(\frac{7}{20} \…
\(\frac{9}{20}\times60\)
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which is the most accurate way to estimate 55% of 41? \\(\frac{1}{3} \\…
$\frac{11}{20}\times40$
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a survey stopped men and women at random to ask them where they purchas…
Women (Store): 23, Women (Total): 40, Men (Online): 19, Men (Total): 54, Total: 94.
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question what is the total number of different 12-letter arrangements t…
\(39916800\)
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which is the most accurate way to estimate 74% of 663? \\(\\frac{3}{4} …
\(\frac{3}{4}\times660\)
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which is the most accurate way to estimate 34% of 605? \\(\frac{1}{3} \…
\(\frac{1}{3}\times600\)
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a random sample of students was surveyed and asked to list their grade …
| | Pets | No Pets | Total | |---|---|---|---| |6th grade|15|28|43| |7th grade|12|12|24| |8th grade|17|17|34| |Total|44|57|101|
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which is the most accurate way to estimate 71% of 2887? \\(\frac{7}{10}…
$\frac{7}{10}\times290$
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a survey asked a random sample students if they estimated they spent mo…
14
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a random sample of students was surveyed and asked to list their grade …
121
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a random sample of students was surveyed and asked to list their grade …
12
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which is the most accurate way to estimate 92% of 119? \\(\\frac{1}{2} …
$\frac{9}{10}\times120$
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a random sample of students was surveyed and asked to list their grade …
36
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a survey stopped men and women at random to ask them where they purchas…
11
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which is the most accurate way to estimate 69% of 92? $\\frac{7}{10} \\…
$\frac{7}{10}\times90$
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which is the most accurate way to estimate 51% of 381? \\(\frac{3}{4} \…
\(\frac{1}{2}\times380\)
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which is the most accurate way to estimate 35% of 770? \\(\\frac{1}{3} …
\(\frac{1}{3}\times780\)