A beverage company puts one of the letters in the word MATH under each bottle cap. A prize is given to each person who collects all the letters. Which of the following could be used as a simulation for how many bottles it would take to collect all four letters?

A.
generating random integers from 1 to 100

B.
4 number cubes

C.
tossing a coin 4 times

D.
a spinner with 4 equal sections

D.  a spinner with 4 equal sections

Step-by-step explanation:

There are 4 letters in the word MATH, so each letter has an equal probability of 1/4.  Therefore, a spinner with 4 equal sections could be used to simulate the probability of selecting a letter.

so, converting firstly the mixed fractions to improper fractions and then "adding".

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed