RRB NTPC 28 April 2016 Paper

Question : 7 of 100

Marks: +1, -0

What is the mean of the following distribution?
54, 23, 66, 44, 79, 21, 54, 67, 29, 59

Solution:

(2) Mean

= { { sum of observations } }/ { { number of observations } }

Required Mean

=

{ 54 + 23 + 66 + 44 + 79 + 21 + 54 + 67 + 29 + 59 } { 10 }

= { 496 }/{ 10 } = 49.6

Go to Question:

Prev Question

Next Question