25 Questions
| Total Attempts: 786

Questions and Answers

- 1.Find the median in the set of data 23, 13, 18, 29, 32, 25.
- A.
18

- B.
24

- C.
25

- D.
29

- 2.Find the mean of the set of data 12, 9, 6, 17, 20, 15, 12, 5.
- A.
12

- B.
7.5

- C.
3

- D.
20

- 3.Find the mode of the set of data 12, 13, 18, 10, 13, 18, 12, 10, 18, 15
- A.
13

- B.
10

- C.
13 & 18

- D.
18

- 4.Find the outlier of the set of data 24, 37, 33, 31, 28, 25, 33, 12
- A.
31

- B.
12

- C.
30

- D.
33

- 5.Dylan found the mean and median of this list of numbers: 1, 3, 3. If the number 6 were added to the list, then...
- A.
The mean would increase.

- B.
The mean would decrease.

- C.
The median would increase.

- D.
The median would decrease.

- 6.The histogram shows the number of minutes students at Marlowe Junior High typically spend on household chores each day. How many students spend 61-80 minutes on chores?
- A.
10

- B.
11

- C.
12

- D.
13

- 7.The histogram shows the number of minutes students at Marlowe Junior High typically spend on household chores each day. How many students spend 60 minutes or less on chores?
- A.
15

- B.
3

- C.
5

- D.
18

- 8.Use the bar graph below. Approximately how many more students ride in a car than walk?
- A.
3

- B.
50

- C.
100

- D.
150

- 9.Use the line graph. By how many millions of dollars did sales increase from 1992 to 1993?
- A.
$20 million

- B.
$35 million

- C.
$40 million

- D.
$15 million

- 10.Decide which sampling method is used. You sample every sixth person at a grocery store to see what type of sports events they watch.
- A.
Random Sampling

- B.
Systematic Sampling

- C.
Convenience Sampling

- 11.At Javier's summer job with a research company, he must get a random sample of people in a local town to answer a question about an upcoming election. Which method could he use to get a random sample?
- A.
Questioning parents waiting for their child at school

- B.
Collecting responses only at work

- C.
Selecting every other mail-in response

- D.
Selecting people randomly from the list of town residents

- 12.Which question is biased?
- A.
"What sport do you play?"

- B.
"Do you prefer to sit on the couch and watch TV or do you like to exercise and stay in shape?"

- C.
"What is your favorite food?"

- D.
"Do you prefer yogurt or pudding for dessert?"

- 13.Which survey question is unbiased?
- A.
"Do you prefer bringing a healthy lunch to school or eating overcooked cafeteria food?"

- B.
"Which do you prefer with a meal, water or a syrupy sweet soft drink?"

- C.
"Do you prefer bringing lunch to school or eating school lunches?"

- D.
"Do you prefer the stake tater tots or the fresh fruit?"

- 14.Decide which sampling method is used. Your teacher puts the names of all the students in your class into a box. He selects a class representative by drawing a name out of the box.
- A.
Random sampling

- B.
Systematic sampling

- C.
Convenience sampling

- 15.Find the range of the set of data 12, 9, 6, 17, 20, 15, 12, 5.
- A.
12

- B.
7.5

- C.
15

- D.
20

- 16.A number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number greater than 6.
- A.
1/6

- B.
1

- C.
0

- D.
2/3

- 17.A number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number less than
__or equal to__6.- A.
1/6

- B.
1

- C.
1/2

- D.
5/6

- 18.If you spin the spinner, what is the probability of the pointer landing on Y?
- A.
0

- B.
1/8

- C.
1

- D.
1/2

- 19.If you spin the spinner, what is the probability of the pointer landing on G?
- A.
100%

- B.
25%

- C.
50%

- D.
33%

- 20.You mix the letters S, E, M, I, T, R, O, P, I, C, A, and L thoroughly. Without looking, you draw one letter. Find P(I) as a fraction, a decimal, and a percent.
- A.
1/12, 0.083, 8.3%

- B.
1/10, 0.1, 10%

- C.
1/5, 0.2, 20%

- D.
1/6, 0.17, 16.7%

- 21.There are 10 crayons in a box. Two are orange. A crayon is selected at random. Find the probability that it is NOT orange.
- A.
4/5

- B.
1/10

- C.
9/10

- D.
1/2

- 22.Suppose you have the spinner and cards shown. Use a tree diagram to find the possible outcomes for spinning the spinner once and choosing a card. What is the total number of outcomes?
- A.
10 outcomes

- B.
7 outcomes

- C.
21 outcomes

- D.
3 outcomes

- 23.At a pizza parlor, Tisha has a choice of pizza toppings and sizes. The topping choices are pineapple, ham, and black olives. The size choices are mini and small. Which tree diagram shows the number of possible one topping pizza combinations that Tisha can order?
- A.
- B.
- C.
- D.

- 24.A coin is tossed and a single number cube is rolled. What is the probability that the coin shows heads and the number cube shows 5? (Hint, make a sample space)
- A.
1/6

- B.
2/3

- C.
1/12

- D.
1/4

- 25.A bag contains 5 purple marbles and 7 yellow marbles. A yellow marble is drawn and not replaced. Then a second marble is drawn. What is the probability that the second one is purple?
- A.
7/5

- B.
5/7

- C.
5/11

- D.
5/132

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