the mean of 22 numbers is 18 if 2 is added to every number what will be the new mean
Answers
Answered by
3
Answer:
22-18=❌but if 2 you cannot complete this question about the same time
Answered by
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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