You deposit $365 into a savings account. after one year, the amount in the account is $428 . which expression describes the percent of increase in the account balance?

Step-by-step explanation:

Given :You deposit $365 into a savings account. After one year, the amount in the account is $428 .

To Find : Which expression describes the percent of increase in the account balance?

Solution :

let x be the percent of increase in the account balance .

Since she had $365

after one year she has $428

increased amount = 428-365 =$65

So

Thus the expression describes the percent of increase in the account balance :

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

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.