Question

section 5.1 homework
score: 10/17 answered: 10/17
question 11
giving a test to a group of students, the grades and gender are summarized below
grades vs. gender

	a	b	c
female	18	3	19

if one student was chosen at random, find the probability that the student got an a.
probability = (round to 4 decimal places)

Explanation:

Step1: Calculate total number of students

Total students = \(7 + 12+11 + 18+3 + 19\)
\[= 70\]

Step2: Calculate number of students who got an A

Number of students with A = \(7+18=25\)

Step3: Calculate the probability

Probability \(P=\frac{\text{Number of students with A}}{\text{Total number of students}}\)
\[P=\frac{25}{70}\approx0.3571\]

Answer:

\(0.3571\)