Question

Find a
(a) 4.5
(c) 4.2
(d) 4.4
5,5, 8, 7, k, 4, 1, 8.
(6) k =5
(c) k=4
(a)k=2
(d) k=8
(a) 10
(d) 45
(b) 77 runs
(c) 70 runs
(d) 72 runs
(a) 75 runs
(d) x 1+1
The mean of n observations is x. If the first observation is increased by 1, the second by 2, the third
by 3, and so on, then the new mean is
n+1
(a) x +(2n+1) (b) x+
(c) *+(n+1
2
2
5n
umbers is then n =
4,3,6,3,4,5,2,2,6,3,8,3,3,5,4,8,2,5,4,4
Find 'k' if the mean of the numbers below is 5.
The mean of a certain number of observations is 40. If two more items with value 40 and 64 are
added to the data the mean increases to 42. Find the number of items in the original data.
Average score of the first six batsmen of a cricket team is 37 and that of the last six batsmen is 40.
Average score of the team is 35. Find the score of the sixth batsman.​

Answer 1

Answer:

1.

option B is correct answer.

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Answer 2

Answer:

B)

Step-by-step explanation:

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