Question

1. The mean of 10, 15, x, 5, 15 is 15. What is the value of x?​

Answer 1

Answer:

(10+15+x+5+15)/5=15

45+x=15x5

45+x=75

x=75-45

x=30

hope it will help you

Answer 2

Answer:

Mean = 15

Sum of all observations

Mean = ----------------------------------------

Total no.of observations

10 + 15 + x + 5 + 15

15 = -----------------------------------

5

45 + x

15 = -----------

5

15 × 5 = 45 + x

75 = 45 + x

x = 75 - 45

x = 30

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