Home / Unit-11 Basic Statistics / Question
MCQ
For the frequency distribution x: 3, 6, 9 with f: 4, 3, 3, the mean is:
Unit-11 Basic Statistics
A 5.5
B 5.7
C 6.0
D 6.3
Explanation

sum of fx = 12 + 18 + 27 = 57 and sum of f = 10, so mean = 57/10 = 5.7.

Related MCQs

The mode of the data 1, 1, 2, 2, 2, 3, 3, 3, 3 is:
Unit-11 Basic Statistics View
Data which is collected but not arranged in any order is called:
Unit-11 Basic Statistics View
For the classes 10-19, 20-29, 30-39, the lower class boundary of the class 20-29 is:
Unit-11 Basic Statistics View
Tally marks are used to count the:
Unit-11 Basic Statistics View
The variance of the data 1, 2, 3, 4, 5 is:
Unit-11 Basic Statistics View
The mean of the first ten natural numbers is:
Unit-11 Basic Statistics View