1. A bank account earns 0.06% annual interest compounded monthly. The balance B of the account after t months starting with $250 is given by the equation B = 250(1.06)". How long will it take to triple the
balance of the account?

question:

could we have options?

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

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step-by-step explanation:

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step-by-step explanation: