A car manufacturer claims that, when driven at a speed of 50 miles per hour on a highway, the mileage of a certain model follows a normal distribution with mean μ = 30 miles per gallon and standard deviation σ = 4 miles per gallon.

One of the questions in the Pew Internet & American Life Project asked adults if they used the Internet at least occasionally (Pew website, October 23, 2012).

Safeway is selling cereal at $10 for 4 boxes. What is the cost per box?

Which events have a probability of 25 percent? Select three options. choosing a green jelly bean out of a bag that contains 2 green jelly beans, 1 red jelly bean, and 5 yellow jelly beans rolling a number less than 3 on a six-sided die spinning a

Three type of linear systems

To determine the size of a sample, the standard deviation of the population must be estimated by either taking a plot surveying or by approximating it based on knowledge of the population. a) true b) false

X/y + 9 = n Solve for y

The odds against the horse Bucksnot winning the race are 1:12. What is the probability that Bucksnot will win the race?

1) The width of a rectangle is 6 3/4 inches. The length is 3 1/9 times its width. What is the area of the rectangle?

What's 3.054 as a fraction

Find the rate and unit rate of 420 miles in 7 hours