Statistik
Datenanalyse, Wahrscheinlichkeitsverteilungen und Hypothesentests.
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the daily steps recorded over five days are 2000, 3000, 4000, 7000, 900…
c. High variability
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a data set has the following values: 5,7,9,11,13. what is the mean of t…
c. 9
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find the ratio. then find and interpret the value of the ratio. fruit p…
The value of the ratio is \(\frac{3}{2}\). The amount of lime juice is \(\frac{3}{2}\) times the amount of mint leaves.
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when comparing two datasets, if one has a standard deviation of 5 and t…
d. The dataset with a standard deviation of 10 has more variability
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find the ratio. then find and interpret the value of the ratio. fruit p…
The value of the ratio is \(\boldsymbol{\frac{8}{3}}\). The amount of white grape juice is \(\boldsymbol{\frac{8}{3}}\) times the amount of sugar.
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what is the purpose of squaring deviations when calculating variance? a…
d. To eliminate negative values and emphasize larger differences
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the number of hours students spent studying for a test are 2,4,4,5,7. c…
d. 1.82, showing moderate variability in study times
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find the ratio. then find and interpret the value of the ratio. fruit p…
The value of the ratio is $\frac{1}{6}$. The amount of mint leaves is $\frac{1}{6}$ the amount of chopped watermelon.
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what is the symbol used to represent variance? a. $\\sigma$ b. $\\sigma…
b. $\boldsymbol{\sigma^{2}}$
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yesterday, \\(\\frac{4}{7}\\) of the 210 students in a contest gave the…
120 students
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khalil and faith are adding chocolate chips to a batch of pre-made cook…
Khalil's cookies will be more chocolaty.
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7. a recipe for 1 batch of muffins calls for (\frac{3}{4}) cup of almon…
8
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mei mei and andres are making fruit salads for a picnic. mei mei mixes …
Mei Mei’s fruit salad will be more melony.
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students are making lemonade from a liquid lemon concentrate. mason mix…
The two lemonades will be equally lemony.
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problem 12: spiral review bettie’s boutique is having a 20% off sale. h…
The relationship is proportional because the ratio of sale price to original price is a constant 0.8 for all items, and the sale price is equal to 80% (100% - 20%) of the original…
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students are making lemonade from a liquid lemon concentrate. mason mix…
The two lemonades will be equally lemony.
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in art class students are mixing black and white paint to make gray pai…
Julia’s gray paint will be darker.
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in art class students are mixing black and white paint to make gray pai…
The two gray paints will be equally dark.
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check your understanding 1. copy and complete the table. | | compound i…
| Compound Interest Rate per Annum (%) | Compounding Frequency | Term | Interest Rate per Compounding Period, r (%) | Number of Compounding Periods, n | |-------------------------…
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paisley and samir are adding chocolate chips to a batch of pre - made c…
Samir’s cookies will be more chocolatey.
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students are making lemonade from a powdered lemon drink mix. jai mixes…
Gianna’s mix will be more lemony.
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the city gardener ordered 1,680 tulip bulbs for riverside park. the bul…
48
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suppose a satellite orbiting earth travels 300 kilometers in 40 seconds…
### Part (a) # Explanation: ## Step1: Identify the ratio The satellite's speed is constant, so the ratio of distance to time should be equal. The distance for the first case is 30…
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9. driving at an average speed of 52 mph, how long will it take someone…
It will take 7.5 hours.
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7. pocket folders are $0.39 each at the store. if carolyn paid $7.02, h…
18
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the term on margin means paying the balance in full for an asset with n…
paying the down payment on an asset and borrowing the balance
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3. three - fourths of the 8th graders of kingston middle school went on…
The total number of 8th graders is 336.
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max recorded the math scores of five of his classmates in the table. ma…
24
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the venn diagram shows the number of employers who ranked skills import…
47
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nissan 92 toyota 92 ford 95 honda 94 hyundai 80 acura 72 what is the up…
lower quartile: 86 upper quartile: 93
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which of the following is a valid probability distribution? probability…
Probability Distribution A (the first option with x values 1-4 and P(x) values 0.42, 0.38, 0.13, 0.07)
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bryson hopes to win a three-day vacation in a drawing that is being hel…
$\frac{2}{25}$ (Option A)
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7 6 5 number of players 4 3 2 1 0 0.0-0.5 0.6-1 1.1-1.5 1.6-2 2.1-2.5 2…
The left side of the histogram has a cluster.
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mrs. dominguez asked her students to plot the number of books they read…
6
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iliana is painting a picture. she has green, red, yellow, purple, orang…
10
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four speed skaters, marco, naim, oliver, and pedro, compete in a relay …
A = {MOPN, MPON, PMON, POMN}
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what is the center of the data in the dot plot? number of minutes to fi…
13
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people at the state fair were surveyed about which type of lemonade the…
A. $P(\text{pink lemonade} | \text{female}) = P(\text{pink lemonade}) = 0.6$
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six students collect buttons for a project. the students have 10, 14, 1…
13
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the area of the shaded circle below is 78.5 square inches. the area of …
0.25
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jakob rolls an 8 - sided die that is numbered from 1 through 8 a total …
A. 50
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jaxon has a bag of marbles. he draws one marble from the bag. before dr…
return the marble he initially drew from the bag
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1 - 10 1 11 - 20 0 21 - 30 1 31 - 40 1 41 - 50 2 51 - 60 4 61 - 70 6 71…
The scale should be 1 - 15, and the interval should be 10.
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thth thtt tthh ttht ttth tttt what is the probability of getting the sa…
$\boldsymbol{\frac{3}{8}}$ (Option: $\boldsymbol{\frac{3}{8}}$)
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norman would like to purchase a new bicycle. he looks at bicycles that …
$311$ (Option D. $311$)
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a standard deck of 52 playing cards contains 13 cards in each of four s…
4%
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the data set represents the number of rings each person in a room is we…
4
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the table shows the number of games a team won and lost last season. wi…
a 5-section spinner with congruent sections, 3 representing a win and 2 representing a loss
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what is the probability of drawing a green marble out of the bag withou…
$\boldsymbol{\frac{1}{3}}$ (Option: $\boldsymbol{\frac{1}{3}}$)
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4. how many tiny waterford crystals, handmade in ireland, are placed on…
2688
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jude has a deck of playing cards. he is asked to remove one card at ran…
He could put the first card he removed into his pocket.
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| result | frequency | | ---- | ---- | | blue | 7 | | red | 9 | | green…
$\frac{9}{30}$ (corresponding to the second option: $\boldsymbol{\frac{9}{30}}$)
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which of the following values could represent the probabilities of comp…
$\frac{2}{5}$ and $\frac{3}{5}$
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which data set is the most spread from its mean? 26, 6, 20, 36 28, 15, …
49, 17, 4, 18
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including jose, there are eight people in his family. if order matters,…
840
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the dot plot shows the number of goals erins soccer team scored this se…
The team never scored exactly 2 goals in a single game.
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which statements about the measures of center are true? select three ch…
A. The mean for Group A is less than the mean for Group B. B. The median for Group A is less than the median for Group B. C. The mode for Group A is less than the mode for Group B.
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the table shows information about the number of students who play diffe…
1. Tennis 2. Baseball 3. Soccer 4. Football
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ten words in context in the space provided, write the letter of the mea…
B. to support ### Question 2:
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four spinners with distinct sections of equal area are spun 40 times. w…
a spinner with 2 sections
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for the graphs below, for which probability distribution is the value o…
Negatively skewed
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analogies choose the word that correctly completes the analogy below. c…
c. balmy ### Synonyms or Antonyms? 1. # Brief Explanations: "Era" and "epoch" both refer to a period of time, so they have similar meanings.
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carmen is going to roll an 8 - sided die 200 times. she predicts that s…
Carmen's prediction is low because $200\times\frac{1}{4}$ is 50.
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a security alarm requires a four - digit code. the code can use the dig…
0.02381
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there are 14 dogs in a particular class at a dog show. blue, red, yello…
24,024
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the two-way table shows the number of sport utility vehicles with certa…
0.3
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3. how many different balls have been used since 1908? find the quotien…
7
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after surveying students in her homeroom, katie decided to use a number…
$\frac{1}{216}$ (Option B)
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at a jeans factory, a random quality check found 8 pairs defective and …
80 pairs
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a four - person committee is chosen from a group of eight boys and six …
$\boldsymbol{\frac{10}{143}}$ (Option: $\boldsymbol{\frac{10}{143}}$)
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a survey was taken of children between the ages of 3 and 7. let a be th…
A. A and B are independent events because P(A | B) = P(A) = 0.18.
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18. the literary device in \they grow the fruit but eat/ the rind,\ is?…
18. C. Irony 19. C. Alliteration 20. B. The pain and trauma expressed through cultural music 21. C. Bitter, reflective, and resilient 22. A. By adding historical references and pe…
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the probability for event a is 0.3, the probability for event b is 0.6,…
The sum of P(A) and P(B) is not equal to P(A or B).
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how many 5-letter combinations can be created from the letters in the w…
A. 56
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which expression can be used to find the probability that a randomly se…
$1-\frac{9}{16}$
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mean = \\frac{35 + 10 + 25 + 42 + 19}{5} = 27\ step 2: find each absolu…
Dora used only four numbers in finding the mean absolute deviation.
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how many possible outcomes are there when shanya spins the spinner show…
D. 36
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vacation packages how many of the new agents sold more than 10 vacation…
6
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a survey finds that 48% of people identify themselves as fans of profes…
- $P(F|C) = 0.75$ - $P(C\cap F) = 0.09$ - $P(C\cap F) = P(F\cap C)$
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how many 2-letter combinations can be created from the distinct letters…
28
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the number of absences for one week for all students at a high school w…
0.92
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number of students number of students in each class at oak middle schoo…
0
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viktoria knows that it is impossible to remove a red marble from her ba…
0
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what is the center of the data? number of green candies in a bag the ce…
13
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the height of the bars in the histogram represent the number of runs ma…
the number of runs Maria jogged in each range of miles.
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1 2 3 4 5 6 first number cube 1 1,1 1,2 1,3 1,4 1,5 1,6 2 2,1 2,2 2,3 2…
- rolling a sum of 9 - rolling a sum that is less than 5 - rolling a sum that is greater than 5 but less than 7
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which value cannot represent the probability of an event occurring? 0.0…
D. 1.1
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a number cube has faces numbered 1 to 6. what is true about rolling the…
S = {1, 2, 3, 4, 5, 6} If A is a subset of S, A could be {5, 6}. If a subset A represents the complement of rolling a 5, then A = {1, 2, 3, 4, 6}.
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the number of boxes of food that six volunteers collected for the food …
7.7
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he plans to spin it 80 times. which equation predicts the number of tim…
$\text{P(green)} = \frac{2}{8}(80)$
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there are 5 customers currently present in a coffee shop. three of the …
60 (Option: 60)
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a number cube was rolled as part of an experiment. the results are in t…
D. 6
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a survey was taken of children between the ages of 10 and 17 about how …
Out of the 97 children who have 1 sibling, 40 of them do not have a pet.
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this question has two parts. first, answer part a. then, answer part b.…
Peggy's mistake is that the coefficient in her scientific notation ($0.6706$) is less than 1. Scientific notation requires the coefficient to be a number between 1 and 10, not inc…
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8 - 83. the u.s. census bureau takes a census every 10 years. the popul…
The expected population in 2010 is approximately \( 343.0 \) million people (using the formula \( y = 281.4(1.02)^{10} \)) ### Part (c)
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9 multiple choice 1 point seven doctors offices were surveyed to see ho…
26.719 (corresponding to the option with 26.719)
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7 multiple choice 1 point listed below are the prices of cars in a cert…
$7302.79$
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5 multiple choice 1 point jake has taken three tests in his math class.…
73, 81, 86 ### Question 6
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4 multiple choice 1 point find the mean, median, and mode of the follow…
Mean: 9.667 Median: 9 Mode: 6, 1 (corresponding to the second option: Mean: 9.667, Median: 9, Mode: 6, 1)
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3 multiple choice 1 point each of the following categories describes so…
1 and 4 (the option corresponding to "1 and 4" among the given choices)