13. Human body temperatures have a mean of 98.20° F and a standard deviation of 0.62° F. If a student is found to
have a temperature of 99.5° F, find the z score and assess whether this temperature should be considered unusual.
ting
02.1; not unusual
02.1; unusual
O-2.1; not unusual
0-2.1; unusual

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Explain why the factor 1.5 is broke. into two numbers in the model.