Quiz · Easy

Reading Graphs and Charts

Practice the data questions from SAT, ACT and intro statistics: bar charts, box plots, pie charts and scatter plots.

by Kill h.11 questionsCreated Nov 8, 2026, 08:04 PM

Statistics· Descriptive Statistics#statistics#data#sat

11 questions

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1
A student's income is $2,000 a month. How much goes to food?
- A
  $250
- B
  $400
- $500
- D
  $800
25% of $2,000 = $500.
2
In which month were sales highest?
- A
  February
- April
- C
  June
- D
  May
April's bar is the tallest, at $22k.
3
How much higher were April's sales than March's?
- A
  $9k
- B
  $11k
- $13k
- D
  $22k
22 − 9 = 13, so $13k.
4
What was the mean monthly sales figure from January to June?
- A
  $15k
- $16k
- C
  $17k
- D
  $18k
(12 + 18 + 9 + 22 + 15 + 20) / 6 = 96 / 6 = 16, so $16k.
5
In how many months were sales above $15k?
- A
  2
- 3
- C
  4
- D
  5
February (18), April (22) and June (20). May is exactly 15, which is not above 15.
6
What is the median test score?
- A
  18
- 24
- C
  25
- D
  31
The line inside the box marks the median: 24.
7
What is the interquartile range (IQR)?
- 13
- B
  30
- C
  7
- D
  24
IQR = Q3 − Q1 = 31 − 18 = 13. 30 is the range (40 − 10).
8
About what percentage of students scored above 31?
- A
  50%
- B
  75%
- 25%
- D
  10%
31 is Q3; a quarter of the data lies above the third quartile.
9
What fraction of the budget is rent?
- A
- C
- D
40% = 40/100 = 2/5.
10
Which statement best describes the relationship shown?
- A
  Strong negative correlation
- B
  No correlation
- Strong positive correlation
- D
  Studying causes higher scores
Points rise from left to right in a tight band: a strong positive correlation. Correlation alone cannot prove causation.
11
Using the trend, which score is most likely for a student who studied 5 hours?
- A
  55
- B
  62
- 74
- D
  90
The point at 5 hours sits at 74, right on the trend.