Question

A school librarian surveyed a random sample of 50 students to find out which library resources students value most. The table below shows the results.Which statements are best supported by the data?Select all that apply.AIt is expected that 15% to 25% of all students will value movies the most.B.It is expected that 20% to 30% of all students will value books the most.СIn a group of 25 students, it is expected that around 5 students will value study areas the most.DIn a group of 100 students, it is expected that around 6 students will value classes the most.EIn a group of 200 students, it is expected that 20 students will value study areas the most, and 20 students will value movies the most.

Answer 1

Step 1: A school librarian surveyed a random sample of 50 students to find out which library resources students value most.

The table below shows the results

Step 2: Statements that best support the above data?

Option A

It is expected that 15% to 25% of all students will value movies the most. (True) because from the above table 10/50 ≡ 20/100 (15% < x < 25%)

Option C

In a group of 25 students, it is expected that around 5 students will value study areas the most. (True) because from the above table 10/50 ≡ 5/25

Hence Option A & C supports the statement from the above data