Question

three observations are given 2.300,2.301,2.90 which one has greater precise
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Answer 1

Answer:

Let the other nos. be a and b

then  

5

a+b+1+2+6

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=4.4

a+b=13 ---------------------(1)

Variance = 8.24

(1−4.4)  

2

+(2−4.4)  

2

+(6−4.4)  

2

+(a−4.4)  

2

+(b−4.4)  

2

=8.24∗5-------- (2)

Solve (1) and (2)

a = 9, b=4

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Explanation: