Question

A group of randomly sampled students gave the following response when they were asked how many siblings they had: 1, 1, 4, 2, 1, 2, 1, 1, 1, 3, 1, 3, 5, 1, 2, 3, 1, 1, 3, 2. What percentage of the sampled students have three or more siblings at home

Answer 1

30% of the sampled students have three or more siblings at home.

Explanation:

step 1 : The total number of students sampled = 20 students.

step 2 : The students having three or more siblings = 6 students.

The question asks for what percentage of the sampled students have three or more siblings.

step 3 : Let the unknown percentage be X%

X% of total sampled student = students having 3 or more siblings

`(X/100) * 20` = 6 students.

2x =
`6*10`

x =
`(60)/(2)`

x = 30 %