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The mean of 50 observations is 36. If tw...

The mean of 50 observations is 36. If two observations 30 and 42 are deleted, then mean of the remaining observations is

A

48

B

36

C

38

D

none of these

Text Solution

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The correct Answer is:
B
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PATHFINDER-STATISTICS AND MATHEMATICAL REASONING-QUESTION BANK
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  8. The geometric mean of the observations 2, 4, 8, 16, 32, 64, is

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  12. If a, b, c, are any three positive numbers , then the least value of (...

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  13. The median of the data 13, 14, 16, 18, 20, 22 is

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  14. For a continuous series the mode is computed by the formula

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  15. If mean = (3median - mode)x, then the value of x is

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  16. The mean deviation from median is

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  17. The mean deviation from the median is

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  18. If each observation of a rew data, whose variance is sigma^2 is multip...

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  19. The standard deviation of a variate x is sigma The standard deviation ...

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  20. If mean of 4,7,x,8 is 5 , then the value of x is.

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