Missing frequencies from a given mean (and total)
This type of question, asked 5 times: CDS 1 2017, CDS 2 2019, CDS 2 2022, CDS 2 2023, CDS 2 2026. All 5 questions below, oldest first.
Try each one first, then open its answer.
Question 1
CDS 1 2017
53Consider the following distribution :If the mean of the above distribution is 50, what is the value of f ?Class Frequency 0 - 20 17 20 - 40 28 40 - 60 32 60 - 80 f 80 - 100 19 Tap an option to check your answer.
Question 2
CDS 2 2019
61Consider the following grouped frequency distribution :If the mean of the above data is 25.2, then what is the value of p ?x f 0 - 10 8 10 - 20 12 20 - 30 10 30 - 40 p 40 - 50 9 Tap an option to check your answer.
Question 3 (case study, 3 parts)
CDS 2 2022
Consider the following for the next three (03) items that follow : A frequency distribution table is given below :Total frequency is 200 and mean of the distribution is 1.46.x 0 1 2 3 4 5 f 46 p q 25 10 5 48What is the value of p ?Tap an option to check your answer.
49What is the value of q ?Tap an option to check your answer.
50What is the median of the distribution ?Tap an option to check your answer.
Question 4 (case study, 2 parts)
CDS 2 2023
A grouped frequency distribution is given below :Weekly wages in Rupees (Rs.) Numbers of workers 2050 - 2550 5 2550 - 3050 10 3050 - 3550 k 3550 - 4050 8 4050 - 4550 2 4550 - 5050 10 47If average weekly wages earned by a worker is Rs. 3,520, then what is the value of k ?Tap an option to check your answer.
48What is the median (approximate value) of the distribution ?Tap an option to check your answer.
Question 5
CDS 2 2026
99Consider the following incomplete frequency distribution with a total frequency of 100 :If the mean of the frequency distribution is 25, then what are the missing frequencies ?Class Frequency 0 - 10 10 10 - 20 x 20 - 30 20 30 - 40 y Tap an option to check your answer.