State Test Practice Data Analysis & Statistics 2

Question 1

If you flip a fair coin, what is the probability of getting heads?

Accepted Answer

1/2

Answer

1/4

Answer

1/3

Answer

2/3

Question 2

A bag contains 3 red marbles, 4 blue marbles, and 3 green marbles. What is the probability of randomly drawing a blue marble?

Accepted Answer

2/5

Answer

3/10

Answer

1/3

Answer

4/7

Question 3

A stem-and-leaf plot shows: Stem 2 | Leaves: 3, 5, 8. What values does this represent?

Accepted Answer

23, 25, 28

Answer

2, 3, 5, 8

Answer

32, 52, 82

Answer

2.3, 2.5, 2.8

Question 4

Which measure of central tendency is most affected by extreme outlier values?

Accepted Answer

Mean

Answer

Mode

Answer

Median

Answer

Range

Question 5

A survey of 20 students found that 12 prefer math and 8 prefer reading. What percentage prefer reading?

Accepted Answer

40%

Answer

20%

Answer

30%

Answer

60%

Question 6

In a frequency table, what does the frequency column tell you?

Accepted Answer

The number of times each value occurs

Answer

The percentage of each category

Answer

The range of the data set

Answer

The cumulative running total

Question 7

A scatter plot shows points generally trending from the lower-left to the upper-right. What does this indicate?

Accepted Answer

A positive correlation between the variables

Answer

No correlation between the variables

Answer

A negative correlation between the variables

Answer

A random distribution of data