Susan's stylist has done a great job of coloring her hair. She wants to leave a 20 percent tip. If the bill was $150, how much should she tip her stylist?
A.
$15
B.
$20
C.
$30
D.
$45

What are the critical values that correspond to a 95% confidence level and a sample size of 93? a. 65.647, 118.136 b. 59.196, 128.299 c. 57.143, 106.629 d. 69.196, 113.145

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)

What is the answer to this problem? ignore the work. what is the correct answer?