Question

the percent of college students marijuana use for a sample of 97,506 students is shown in the accompanying pie chart. find the probability of each event listed in parts (a) through (d) below.
click the icon to view the pie chart.
(a) randomly selecting a student who never used marijuana
the probability is 51.7 %
(round to one decimal place as needed.)
(b) randomly selecting a student who used marijuana
the probability is 48.3 %
(round to one decimal place as needed.)
(c) randomly selecting a student who used marijuana between 1 and 29 of the last 30 days
the probability is \\( \square \\% \\)
(round to one decimal place as needed.)

Explanation:

Step1: Identify relevant percentages

From the pie - chart, the percentage of students who used marijuana between 1 - 9 days is \(15.0\%\) and the percentage of students who used marijuana between 10 - 29 days is \(4.0\%\).

Step2: Calculate the total percentage

We add these two percentages together. Using the formula \(P = 15.0\%+4.0\%\)

Answer:

\(19.0\%\)