A popular beach currently has a number of visitors. The lifeguard counts how many people are doing various activities. swimming 36
scuba diving 24
waterskiing 12
sunbathing 2
snorkeling 2

What is the probability that a randomly chosen beachgoer is swimming?

Write your answer as a fraction or whole number.

P(swimming) =

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?