If events a and b are independent, what must be true?
p(a|b) = p(b)
p(a/b) = p(a)
p(a) = p(b)
p(ab) = p(bia)

1 3 5

step-by-step explanation:

i took the test: )

7.3

step-by-step explanation:

answer:   expression= p+p*d%

price reduction + sale price = $625

sale price: $p+$p*d%

where d% is the percentage of discount

step-by-step explanation:

original price = p

price went down by $150 price reduction $p*d%

sale price= $ 475

therefore the price before sale is: $625

and the expression that shows the price before sale is: p+p*d%