Management Science 101 Tutorial 5 - Applications of the Standard Normal Distribution
1. The average hourly earnings of student tutors are R20 with a standard deviation of R10
Assume the hourly earnings of tutors are nom
ormally distributed.
a) If a tutor is selected at random what is the probability that he she earns
between R20 and R30 per hour for tutoring.
baby 15 and 5 ar hour​

a) If a tutor is selected at random what is the probability that he she earns

between R20 and R30 per hour for tutoring.

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.