The product of two positive integers is 120. One number is 2 less than five times the other. Select the equation that can be use
2 answers:
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Answer is 1115,5
here is how
here is how
Answer:
Mean = 1.42
Variance = 0.58
Step-by-step explanation:
Given: X denote the number of luxury cars sold in a given day, and Y denote the number of extended warranties sold.
Also, joint probability function of X and Y are given.
To find:
mean and variance of X
Solution:
From the given joint probability function of X and Y,
Mean of X:
Variance of X: