The number of absent days a student had in the

aidmoon2x

aidmoon2x

Answered question

2021-12-06

The number of absent days a student had in the last five months are {0,4,2,0,3}. What is the approximate variance of this data?
F. 1.6
G. 1.8
H. 2.6
J. 2.8

Answer & Explanation

Supoilign1964

Supoilign1964

Beginner2021-12-07Added 19 answers

Step 1
Given
The number of absent days a student had in the last five month are {0,4,2,0,3}
We find variance of this data
μ=mean=x=0+4+2+0+35=95=1.8
Step 2
variance =1ni=15(xiμ)2=15((01.8)2+(41.8)2+(21.8)2+(01.8)2+(31.8)2)
=12.85
=2.56
2.6
option (H)

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