Back to Use data from a random sample to draw inferences about a population — Problem 4 · Task Set 18

Drawing Inferences from Random Samples

Work through each section in order. For short response questions, write complete sentences and show your reasoning.

Grade 7·21 problems·~35 min·Common Core Math - Grade 7·standard·7-sp-a-2

Work through problems with immediate feedback

Fluency Practice

A researcher randomly surveys 80 city residents and finds 52 use public transit regularly. Which statement CORRECTLY reports this finding as a population inference?

65% of all city residents use public transit regularly.

Based on our sample, we estimate that about 65% of all city residents use public transit regularly.

Exactly 65 out of every 100 city residents use public transit regularly.

The survey proves that most city residents use public transit.