Consider the variable Joe’s weight next Friday. What is the probability he weighs 170 pounds (the same weight he told you for last Friday)?
The time spent waiting at a traffic light can be considered a random variable with values from 0 seconds (it’s green when you approach and can go on through) to 30 seconds with the distribution shape shown above. What is the height of this distribution? Express your answer in decimal form using three decimal places.
From the standard Normal table, P(z ≤ 1.5) =
Laundry detergent boxes are filled according to an approximately Normal distribution with mean 34.15 ounces and standard deviation 0.1 ounces. What is the probability a randomly selected box has less than the 34 ounces of advertised weight?