Question
Asked Oct 21, 2019
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Will you show me step by step how to solve this? Will you plug in the numbers in the formulas so I can see how they go?

#Deliveries X 35
Prob Px
37 38 31
3le
उज उ उ४ अ
0. 0.1 0.3 0.3 0.2
meanu
Vaciance o*
SDO
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#Deliveries X 35 Prob Px 37 38 31 3le उज उ उ४ अ 0. 0.1 0.3 0.3 0.2 meanu Vaciance o* SDO

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Expert Answer

Step 1

The value of mean (µ) is obtained below:

The required probability mass function of X is,

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38 39 #deliveries X 35 P(X) 36 37 0.1 0.1 0.3 0.3 0.2

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Step 2

The required value is,

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E(X) -ΣΡ(=x) [{(35)(0.1) +{(36)(0.1)} + {(37)(0.3)} +{(38)(0.30)} +{(39) (0.20)} ] =[3.5+3.6+11.1+11.4+7.8] =37.4

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Step 3

The variance of (σ2) is obtained below:

The E (...

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E(X)-ΣP(X = (s'(0.1}+{6)* (0.1} + 37) (0.3))-(38) (0.30)+(39) (0.20)}| =[122.5+129.6+410.7+433.2+304.20] 1,400.2

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