State Test Practice Data Analysis & Statistics 3

Question 1

Which of the following is an example of a biased survey question?

Accepted Answer

Do you agree that our school's lunch program is excellent?

Answer

How many hours per week do you exercise?

Answer

What is your favorite school subject?

Answer

How do you usually travel to school?

Question 2

Which graph type is best for displaying how a class's test scores are distributed across score ranges?

Accepted Answer

Histogram

Answer

Pie chart

Answer

Line graph

Answer

Scatter plot

Question 3

If a data set has an even number of values, how is the median calculated?

Accepted Answer

Find the average of the two middle values

Answer

Take the single middle value

Answer

Use the most frequently occurring value

Answer

Subtract the smallest value from the largest

Question 4

A student records the daily high temperature (°F) for one week: 72, 75, 68, 80, 77, 74, 71. What is the median temperature?

Accepted Answer

74

Answer

72

Answer

75

Answer

77

Question 5

A researcher wants to determine if a new teaching method improves test scores. Which data collection approach is most reliable?

Accepted Answer

Compare student scores before and after using the new method

Answer

Ask teachers whether they think the method works

Answer

Survey students about their feelings toward the method

Answer

Examine only the scores of the highest-performing students

Question 6

If you roll a standard six-sided die, what is the probability of rolling a number greater than 4?

Accepted Answer

1/3

Answer

1/6

Answer

1/2

Answer

2/3

Question 7

Which statement correctly describes a reliable conclusion from data?

Accepted Answer

A large, randomly selected sample produces more reliable conclusions than a small one

Answer

Correlation between two variables proves that one causes the other

Answer

A data set without outliers is always more accurate than one with outliers

Answer

A survey of 10 people can accurately represent the entire U.S. population