- A56
- B112
- C50
- D62
Step-by-Step Solution
sum fi = . fi*xi = . Set .
Answer: A) 56
The mean of the following distribution is 18. Find the missing frequency f.
Classes (marks 11,13,15,17,19,21,23) with frequencies 3,6,9,13,f,5,4.
What is the value of f?
Class 10Mean of Grouped DataStatistics and Probability
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Mean of Grouped Data practice questions
More Class 10 Mean of Grouped Data practice
The monthly expenditure (in thousands of Rs) of 50 families is grouped into classes 1-3,…A shopkeeper records the age (in years) of 60 customers buying a phone: 15-25: 8, 25-35:…The runs scored by 40 batsmen in a local Ranji match are grouped as: 0-20: 5, 20-40: 12,…The mean of the distribution below is 50. Find the missing frequencies f1 and f2, given…Continuing the previous setup (classes 0-20,...,80-100; freq 17, f1, 32, f2, 19; total…