A landscape contractor bids on jobs where he can make S3250 profit. The probabilities of getting...

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A landscape contractor bids on jobs where he can make S3250 profit. The probabilities of getting 1, 2, 3, or 4 jobs per month are shown. PLEASE FIND MEAN, VARIANCE, AND STANDARD Number of jobs X1 Probabaliy P2D 0 0043 0.1 0.2 0.4 0.3

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Number of Jobs ProbabilityX*P(X)X*P(X) P(X) 2 0.2 0.4 0.3 1.0 0.4 1.2 0.8 3.6 4.8 9.3 4 Total 2.9 Mean EX)-2X* P(X) 2.9 Now, E (X2 )-Σ x2 * P(X) = 9.3 Variance - v(x)-E(X2)- (E(X))2 -9.3 - (2.9)2 9.3-8.41 V(X) -0.89 Standard Deviation VVariance = V0.89 Standard Deviation -0.9434

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A landscape contractor bids on jobs where he can make S3250 profit. The probabilities of getting...

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