Aand b are two events. the notation for conditional probability is p(b|a) . which notation is the probability of two events being not independent?

a. p(b|a) = p(a and b) / p(a)
b. p(b|a) = p(a) / p(b)
c. p(b|a) = p(b)
d. p(b|a) = p(b) / p(a)

What is the total surface area of this square pyramid?

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?

What percent of 18 is 24? and plz explain thx.