Differentiate each term with respect to x , then solve y'.
dy/dx = y+2x^3/ x(1+x)
Answer:
2
Step-by-step explanation:
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Answer:
Step-by-step explanation:
Given that X is the number of months between successive payments
Cumulative distribution function of X is

a) PMF of x would be

b) 
The mean is 7.5 you add up all the numbers and then divide by the amount of numbers there is