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JEE MATHEMATICS MCQ: STATISTICS

1 Easy

1 of 1

Application +4 | -1

Which of the following is correct for data

-1,0,1,2

,

3,5,5,6,8,10,11

?

View answer and explanation

Correct option: D

Mode = Median

Option D (Mode = Median) is correct because both the mode and median of the data are 5.

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If the mean of a set of observations

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\bar X,

then the mean of the observations

{x_i} + 2\;i;i = 1,\;2, \ldots ,n

is The sum of 10 items is 12 and sum of their squares is 18 , then standard deviation will be In a family, there are 8 men, 7 women and 5 children whose mean ages separately are respectively 24,20 and 6 years. The mean age of the family is The mean and variance of seven observations are 8 and 16, respectively. If 5 of the observations are 2, 4, 10, 12, 14, then the product of the remaining two observations is

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