Math, asked by riturajkusumakar2, 24 days ago

10.the mean of 15 numbers is 5. If 2 is added to each number, then The what will be the new mean? ​

Answers

Answered by raniram143vj
0

Answer:

new mean is 7

Step-by-step explanation:

given that

mean of 15 no. is 5

mean= sum of observation/no.of observation

5=sum of observation/15

sum of observation= 5×15= 75

now, 2 is added in each no.

which means in total 2×15 is added to sum of observation

so new sum of observation= 75+30= 105

new mean=105/15 (no change in no. of observation)

new mean= 7

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