Type the correct answer in the box. Use numerals Instea Consider this expression.
When I = 3 and y = –6, the value of the expression is

0.997

Step-by-step explanation:

The mean wait times at an orthodontist’s office are typically 17 minutes, with a standard deviation of 2 minutes.

We want to find the percentage that should be seen by the doctor between 11 and 23 minutes for this to be considered a normal distribution.

We know that 23= 17+3(2), is 3 standard deviation above the mean.

Also, 11=17-3(2), is 3 standard deviation below the mean.

According to the empirical rule, approximately 99.7% of the distribution are within 3 standard deviations of the mean.