Question

The average admission charge for a movie is $6. if the distribution of movie admission charges is approximately normal with a standard deviation of $1, what is the probability that a randomly selected admission charge is less than $3.5?

Answer 1

You have to find a z-score

6 -3.50 divided by 1

Now that you have the z-score, you have to use a normal table or a calculator to find the area under the curve which gives you ght probability.

You will look for the area to the left of your z-score.