Question

the travel time to work of people from a survey are: 9, 13, 16, 18, 21, 27, 30, 33, 38, 44, 49, 52, 55 put this data into the frequency table below. time (minutes) frequency 1 - 10 1 11 - 20? 21 - 30 3 31 - 40 41 - 50 2 51 - 60

Explanation:

Step1: Count numbers in 11 - 20

Numbers in 11 - 20 are 13,16,18. So frequency is 3.

Step2: Count numbers in 31 - 40

Numbers in 31 - 40 are 33,38. So frequency is 2.

Step3: Count numbers in 51 - 60

Numbers in 51 - 60 are 52,55. So frequency is 2.

Answer:

11 - 20: 3; 31 - 40: 2; 51 - 60: 2