Suppose your cousin's Tooth Fairy leaves $1 one-third of the time, $0.50 one-third of the time, and $0.80 one-third of the time. What's the expected value of her Tooth Fairy payoff?

$0.767.

Step-by-step explanation:

Total payoff = cash First time, p1 + cash second time, p2 + cash third time, p3

= ($1 * 1/3) + ($0.50 * 1/3) + ($0.80 * 1/3)

= 0.33 + 0.133 + 0.267

= $0.767.

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.