50-10*2 of 5+(40-4)÷9
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Step-by-step explanation:
=50-10×2×5+(40-4)÷9
=50-10×2×5+36÷9
=50-10×2×5+4
=50-100+4
=50-96
= -46
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Class 11
>>Applied Mathematics
>>Numerical Applications
>>Average
>>Find the mean of the following distribut
Question

Find the mean of the following distribution
x:1030507089f:78101510
Medium
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Updated on : 2022-09-05
Solution

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Calculation of Mean
xi fifixi
10 7 70 30 8 240 50 10 500 70 15 1050 89 10 890
N=∑fi=50 ∑fixi=2750∴ Mean = N∑fixi=502750=55
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