Question

The table shows the number of students in each grade at two different schools.Grade 9 Grade 10 Grade 11 Grade 12 TotalSchool A50252025120School B2020251580Total70454540200Compare the probability that a randomly selected student is in grade 10 at each school. Move options to the blanks to complete thesentences.The probability a student at School A is in grade 10 isThe probability a student at School B is in grade 10 isIt isthat a student at School A is in grade 10 compared to a student at School B.19less likelymore likelyequally likely

Answer 1

Answer:

the probability that a student in school A is in grade 10 is;

$\frac{5}{24}$

Explanation:

Given the table in the attached image.

The probability that a student in school A is in grade 10 would be;

$P(A10)=\frac{\text{number of students in grade 10 in school A}}{\text{total number of students in school A}}=\frac{n(10A)}{n(A)}$

From the given data;

$\begin{gathered} n(10A)=25 \\ n(A)=120 \end{gathered}$

substituting the given values;

$P(A10)=\frac{25}{120}=\frac{5}{24}$

Therefore, the probability that a student in school A is in grade 10 is;

$\frac{5}{24}$

A