Math, asked by shreyabarnwal4g, 1 day ago

the mean of 22 numbers is 18 if 2 is added to every number what will be the new mean​

Answers

Answered by guptanaitik512
3

Answer:

22-18=❌but if 2 you cannot complete this question about the same time

Answered by perfect206
7

Answer:

20

Step-by-step explanation:

First,

Mean = 18

N = 22

∑x = ?

We know,

Mean = ∑x/N

or, 18 = ∑x/22

or, 18 *22 = ∑x

∴ ∑x = 396

2 is added to every number.So,

New ∑x = 396+(22 * 2) = 396 + 44 = 440

Finally,

New Mean = (New ∑x/N) = 440/22 = 20

∴The new mean​ is 20

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