Question

• metal, metal, metal, plastic, plastic, metal, plastic, plastic, plastic, plastic

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a. Estimate the proportion of all students that prefer to use a metal pen. Make your thinking visible.

Answer 1

The estimate of the proportion of all students that prefer to use a metal pen is 0.4.

Explanation:

The estimate of the proportion is the sample proportion.

In the sample:

10 students

4 use a metal pen. So

`p = (4)/(10) = 0.4`

The estimate of the proportion of all students that prefer to use a metal pen is 0.4.