Four friends want to take a vacation together, so each one gets a part-time job. Each person has 6 weeks to save $800 for the vacation. Analyze the four individual plans below and decide which of the four people will reach his or her goal of saving $820 for vacation.

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

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: