Question 1

Is this a statistical question? What is the favorite restaurant of the students in my grade level?

Accepted Answer

YES

Answer

No

Question 2

An outlier will always affect the mean of a data set.

Accepted Answer

true

Answer

false

Question 3

Which interval has the highest frequency?

Accepted Answer

50-54

Answer

40-44

Answer

45-49

Answer

55-60

Question 4

How many more times did this team score 50-54 points than score 45-49 points?

Accepted Answer

3 times

Answer

4 times

Answer

7 times

Answer

2 times

Question 5

The mode will always be affected by the outlier.

Accepted Answer

false

Answer

true

Question 6

An outlier will always cause the range to increase.

Accepted Answer

true

Answer

false

Question 7

What is the mode of this data set?

Accepted Answer

6

Answer

no mode

Answer

3

Answer

5

Question 8

What is the median of this data set?

Accepted Answer

5.5

Answer

5

Answer

4.5

Answer

6

Question 9

How many students took this exam?

Accepted Answer

155

Answer

145

Answer

165

Answer

175

Question 10

An outlier cannot change the median.

Accepted Answer

false

Answer

true

Question 11

How many students scored more than 40 points on the exam?

Accepted Answer

90

Answer

20

Answer

155

Answer

30

Question 12

How many shoes are represented in this histogram?

Accepted Answer

44

Answer

40

Answer

14

Answer

54

Question 13

What percent of stores had 80 or more shoes for sale? (Round to the nearest whole number.)

Accepted Answer

45%

Answer

50%

Answer

54%

Answer

32%

Question 14

Joe rolls a number cube 12 times and records the results. Then he uses his results to make a dot plot. The dot plot shows 2 dots over each of 6 numbers. Which statement correctly describes Joe's results?

Accepted Answer

He rolled each number two times.

Answer

He rolled the number two 6 times.

Answer

He rolled each number, but number two was the mode.

Answer

He only rolled the number two.

Question 15

Dan asked 12 people how many cousins they have. The most common answer was 4. Which statement must be true about a dot plot of Dan’s data?

Accepted Answer

4 has the tallest column of dots over it.

Answer

There are no dots over the number 4.

Answer

4 is the largest number that has dots over it.

Answer

All 12 dots are over the number 4.

Question 16

Is it statistical? How many books did you read this year?

Accepted Answer

No

Answer

Yes

Question 17

What is the median of this data set: $4,\ 7,\ 2,\ 12,\ 8,\ 4,\ 9,\ 10$

Accepted Answer

7.5

Answer

7

Answer

8

Answer

8.5

Question 18

Thomas is counting the dandelions in the backyards in his neighborhood. He counts 12 dandelions in each of the first 9 backyards he visits. There are are 2 dandelions in the tenth backyard. What is the average number of dandelions in a backyard in Thomas' neighborhood?

Accepted Answer

11

Answer

10

Answer

12

Answer

9

Question 19

What fraction of the samples have a salt content greater than 38 grams?

Accepted Answer

$\frac{6}{17}$

Answer

$\frac{6}{17}$

Answer

$\frac{6}{17}$

Answer

$\frac{6}{17}$

Question 20

A value much greater or much less than the others in a data set is called an:

Accepted Answer

outlier

Answer

range

Answer

mode

Answer

median

Question 21

The ________________________________ are used to describe the middle of a data set.

Accepted Answer

measures of center

Answer

mean

Answer

median

Answer

outlier

Question 22

Is it statistical? How many Oreos can each pair of fifth graders stack in one minute?

Accepted Answer

yes

Answer

no

Question 23

Joy has the following set of data. If the mean is 12, what could the missing number be?

Accepted Answer

13

Answer

15

Answer

31

Answer

11

Question 24

Which statement is true about this dot plot?

Accepted Answer

skewed left, no outlier

Answer

skewed right, has an outlier

Answer

skewed right, no outlier

Answer

skewed left, has an outlier

Question 25

Which statement is true of this dot plot?

Accepted Answer

there is an outlier, the data is skewed right

Answer

there is an outlier, the data is skewed left

Answer

there is an outlier, the data is symmetrical

Answer

there is no outlier, the data is skewed right

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