Here is a histogram that shows some dog weights in pounds.

Each bar includes the left-end value but not the right-end value. For example, the first bar includes dogs that weigh 60 pounds and 68 pounds but not 80 pounds. An 80-pound dog would be included in the second bar with a frequency of 11.

1. Use the histogram to answer these questions.

   1. How many dogs weigh between 100 and a little less than 120 pounds?

   2. How many dogs weigh exactly 70 pounds?

   3. How many dogs weigh at least 120 pounds?

   4. How much does the heaviest dog at the show weigh?

   5. What would you consider a typical weight for a dog at this dog show? Explain your reasoning.

2. Discuss with a partner:

   • If you used the dot plot to answer the same five questions you just answered, how would your answers be different?

   • How are the histogram and the dot plot alike? How are they different?

Professional basketball players tend to be taller than professional baseball players.

Here are two histograms that show height distributions of 50 professional baseball players and 50 professional basketball players.

1. Describe the distribution of each histogram. Comment on the center and spread in your description.
2. Decide which histogram shows the heights of baseball players and which shows the heights of basketball players. Be prepared to explain your reasoning

A histogram, height in inches, 66 through 90 by twos.  Beginning with 70 up to but not including 72, height of bar for each interval is 1, 0, 4, 12, 10, 12, 4, 2, 0, 1. 

A histogram, height in inches, 66 through 90 by twos. Beginning with 66 up to but not including 68,  height of bar for each interval is 2, 3, 14, 19, 7, 5, 1.