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

The phrase 'do you agree that...is excellent' steers respondents toward a positive answer, making it a leading and biased question.

Question 2

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

Accepted Answer

Histogram

Answer

A histogram groups continuous data into intervals (bins) and displays the frequency of each range, making it ideal for score distributions.

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

With an even number of values, there is no single middle number, so the median is found by averaging the two middle values after sorting.

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

Sorting the data gives 68, 71, 72, 74, 75, 77, 80; the middle (4th) value is 74.

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

Comparing measurable scores before and after the intervention provides direct, objective evidence of whether the method affected outcomes.

State Test Practice Practice Test