Question

the following list gives the number of public libraries in each of 15 cities. 8, 9, 7, 8, 10, 9, 7, 7, 8, 9, 11, 8, 10, 9, 7. send data to calculator. find the modes of this data set. if there is more than one mode, write them separated by commas. if there is no mode, click on
o mode.\

Explanation:

Step1: Count the frequency of each number

Create a frequency - table for the numbers 7, 8, 9, 10, 11 in the data set 8, 9, 7, 8, 10, 9, 7, 7, 8, 9, 11, 8, 10, 9, 7.

• 7 appears 5 times.
• 8 appears 4 times.
• 9 appears 4 times.
• 10 appears 2 times.
• 11 appears 1 time.

Step2: Determine the mode(s)

The mode is the number(s) with the highest frequency. Since 7 appears 5 times and 8 and 9 both appear 4 times, and 5>4>2>1, the mode is 7.

Answer:

7