PSAT/NMSQT Data Interpretation & Analysis 3

Question 1

A company's revenue grows from $200,000 to $250,000 in one year. What is the percent increase?

Accepted Answer

25%

Answer

The increase is $50,000 over $200,000, which is 50000/200000 = 0.25 = 25%.

Question 2

A histogram groups ages into intervals. Which feature distinguishes a histogram from a bar graph?

Accepted Answer

Bars represent continuous intervals with no gaps

Answer

Histograms display continuous data in adjacent intervals, while bar graphs show separate categories.

Question 3

In a box plot, the line inside the box represents which statistic?

Accepted Answer

The median

Answer

The line inside a box plot marks the median of the data.

Question 4

A survey of 500 people reports 60% satisfaction with a margin of error of ±4%. The true value most likely falls in which range?

Accepted Answer

56% to 64%

Answer

The margin of error is added and subtracted: 60% ± 4% gives 56% to 64%.

Question 5

A two-way table shows 30 of 50 surveyed teens own a bike. What fraction own a bike?

Accepted Answer

3/5

Answer

30 out of 50 simplifies to 3/5.

PSAT/NMSQT Practice Test