1The histogram shows the number of hours students spent on homework last week.
Hours of Homework
a) How many students spent 6-8 hours on homework?
b) How many students were surveyed in total?
c) Which interval contains the most students?
d) How many students spent less than 6 hours on homework?
2The histogram shows daily high temperatures (in degrees F) for a month.
Temperature (degrees F)
a) What was the most common temperature range?
b) On how many days was the temperature 75 degrees F or higher?
c) Describe the shape of this distribution (symmetric, skewed left, or skewed right):
3The box plot shows the ages of employees at a company.
What percentage of employees are between 28 and 38 years old?
4The box plot shows the number of points scored per game by a basketball player.
a) What is the median number of points scored?
b) What is the range of points scored?
c) In what percentage of games did the player score 18 or fewer points?
d) The middle 50% of scores fell between what two values? and
5Find the five-number summary for this data set:
Test Scores: 72, 85, 68, 90, 75, 82, 88, 78, 95, 70
Step 1: Order the data from least to greatest:
Range =
6Find the five-number summary for this data set:
Daily Steps: 8500, 12000, 6200, 9800, 7500, 11000, 8800, 10500
Step 1: Order the data from least to greatest:
7Two box plots compare math test scores for Class A and Class B.
Class A:
Class B:
a) Which class has a higher median score?
b) Which class has a larger IQR (more spread in the middle 50%)?
c) Which class has a larger range?
d) Which class performed more consistently (less spread)?
8A scientist recorded the weights (in pounds) of 12 fish caught in a lake:
2.5, 3.2, 1.8, 4.5, 2.9, 3.5, 2.2, 5.1, 3.0, 2.7, 3.8, 4.0
a) Find the five-number summary:
Max = IQR =
b) What percentage of fish weighed between 2.6 and 3.9 pounds?
9A histogram shows the number of hours students exercised last week. The intervals are 0-2, 3-5, 6-8, and 9-11 hours, with frequencies of 4, 12, 8, and 2 students respectively.
a) How many students exercised between 3 and 5 hours?
b) How many total students were surveyed?
c) What percentage of students exercised less than 6 hours?
d) Describe the shape of this distribution:
10A box plot shows Min = 15, Q1 = 25, Median = 35, Q3 = 50, Max = 80. If you know there are 20 data points, how many data points are between 25 and 50?
11Create a data set of 9 numbers where the mean is 10, the median is 9, and the range is 12.