Question

Hartha wanted to know if there was a connection between her coffee consumption and how well she lept that night. For weeks, Martha recorded how many cups of coffee she drank in the morning and How many hours she slept that night. 6 hours 7 hours 5 5 O cups of coffee 1 cup of coffee 6 2 what is the probability that a randomly selected day is one when she drank exactly 1 cup of coffee or is ne when she slept exactly 6 hours? "implify any fractions.

Answer 1

The probability formula is defined as the possibility of an event to happen is equal to the ratio of the number of outcomes and the total number of outcomes.

To find the probability that a randomly selected day is one when she drank exactly 1 cup of coffee is given by

`pr\text{ =}\frac{outcome\text{ of getting 1 cup of coffe}e}{\text{total number of outcome for 0 and 1 coffe}e}`

the outcome of getting one cup = 6 + 2 = 8

total number of outcome = 6 + 2 + 5 + 5 = 18

`pr\text{ =}\frac{8}{18\text{ }}\text{ =}(4)/(9)`

The probability that she sleeps exactly 6 hours is given by the formula