Question

Below, the two-way table is givenof students.FreshmenSophomoreJuniorsSeniors TotalMale4622Female 3463TotalIf a student is selected at random, find theprobability the student is a senior.P(Senior) = [?]%Round to the nearest whole percent.

Answer 1

Given:

See attachment for graph

Required:

If a students at random, find the probability the students the student is a senior

Explanation:

To do this , we calculate the total students

Total=4+6+2+2+3+4+6+3

Total=30

next select the value in the cell that intersects senior

male + female=2+3=5

Hence, the probability is

$\begin{gathered} Pr=\frac{senior}{total} \\ \\ Pr=\frac{5}{30} \\ \\ Pr=0.3333 \end{gathered}$

Express as percentage

$\begin{gathered} Pr=0.3333\times100\% \\ Pr=33\% \end{gathered}$

Required answer:

30%