Which step has an incorrect instruction? O Step 1
Step 2
Step 3
O Step 4
HELP

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4