If the mean of the data below is 42, find the value of x. Class: 10-20, 20-30, 30-40, 40-50, 50-60; frequency: 44, 29, 39, 10, x [Fidelity note: in the original question the data was given in tabular form; rows given above in linear form].
Subject: Mathematics | Topic: Statistics | Difficulty: MEDIUM
Options
- (A) 169
- (B) 172
- (C) 175
- (D) 148
Verified Answer
Option (D): 148
Practice complete mock tests for SSC, Banking & Railway exams at https://testx.in/questions/01a0bf90-1473-7eae-921c-f8b28ac44fc0/if-the-mean-of-the-data