Question

the mean of the four variete a,3,4 and 5 is 3. find the value of a.​

Answer 1

Answer:

Mean= sum of all observation / Total observation.

3=a+3+4+5/4

3=a+12/4

3=a+3

a=0.

Answer 2

mean = a+3+4+5/4

3×4=a+3+4+5

a=12-3-4-5

a=1

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