Question

If mean of the observation -5,-4,a,5,7,10 after arranging them in ascending order is 2 then a=

Answer 1

Answer:

Step-by-step explanation:

Mean=sum of terms/no. of terms

Mean=(-5 + -4+a+5+7+10)/6

=(13+a)/6 =2 (as per question)

13+a= 6x2=12

a=12-13=-1

a=-1

Answer 2

Step-by-step explanation:

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