Question

the number of jumping jacks students completed in one minute are: 35, 40, 47, 52, 54, 55, 58, 63, 72, 77, 79, 83. put this data into the frequency table below. no. of jumping jacks| frequency 30 - 39|1 40 - 49|? 50 - 59| 60 - 69|1 70 - 79|3 80 - 89|

Explanation:

Step1: Count data in 40 - 49

The numbers in the range 40 - 49 from the data set {35, 40, 47, 52, 54, 55, 58, 63, 72, 77, 79, 83} are 40 and 47.

Step2: Determine frequency

There are 2 numbers in the 40 - 49 range.

Answer:

2