Question

# Construct the cumulative frequency distribution for the given data. Age​ (years) of Best Actress when award...

Construct the cumulative frequency distribution for the given data.

 Age​ (years) of Best Actress when award was won Frequency ​20-29 2828 ​30-39 3737 ​40-49 1414 ​50-59 22 ​60-69 77 ​70-79 22 ​80-89 22
 Age​ (years) of Best Actress when award was won Cumulative Frequency Less than 30 nothing Less than 40 nothing Less than 50 nothing Less than 60 nothing Less than 70 nothing Less than 80 nothing Less than 90 nothing

Using given frequencies we calculate cumulative frequency

Age (years) of Best Actress When award was won Cumulative Frequency
Less than 30

28

Less than 40 = 28 + 37 = 65
Less than 50 = 65 + 14 = 79
Less than 60 = 79 + 2 = 81
Less than 70 = 81 + 7 = 88
Less than 80 = 88 + 2 = 90
Less than 90 = 90 + 2 = 92

Note:

Cumulative Frequency : Cumulative frequency is defined as a running total of frequencies. Cumulative frequency can also defined as the sum of all previous frequencies up to the current point.

In above frequency table there is a repetation of frequency that means 28 written as 2828 and 37 as 3737 so calculating cumulative frequency we not consider frequencies are 28, 37, 14, 2, 7, 2, 2