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Mean, Median, Mode || Quantitative Aptitude || CAT 2021 || 17 June

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Question 1

If the sum of the cubes of the first p natural numbers is 1296, then the arithmetic mean of the cubes of those numbers is –

Question 2

If the mean of 12 observations is 8 and their standard deviation is 2, then find the sum of the squares of these observations

Question 3

The standard deviation of (p + q) and (p – q) is

Question 4

The arithmetic for a series 30, 35, 42, P and 56 is 42. Median of this given series is x. Find the mode.

Question 5

Find the mode for the following series – 7, 10, 13, 17, 19, 11

Question 6

What is the mean and mode respectively of the individual series – 1, 5, 10, 12, 15, 15, 18, 20

Question 7

If mean and mode of a distribution are 6 and 8 respectively, then the median is –

Question 8

For a moderately symmetric distribution, mode-median is equal to –

Question 9

The geometric mean (G) of two positive numbers a and b satisfies –

Question 10

The harmonic mean of 1, 1/3, 1/6, 1/10, 1/12 is –

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Jun 17CAT & MBA