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Back to 1.1 Definitions of Statistics, Probability, and Key Terms

1.1 Exercise 6

Avg difficulty 2.5

Determine what the key terms refer to in the following study.

A survey is conducted to check the time taken by a mobile for charging of battery from 50% to 100%. The criteria used to collect the data are:

Wattage of charger used Type of mobile used
30 W Android

We want to know the proportion of Android mobiles that are charged to 100% within 30 minutes. We start with a simple random sample of 200 mobiles.

OpenStax Introductory Business Statistics 2e, 1.1 Definitions of Statistics, Probability, and Key Terms, exercise 6

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Adapted from Introductory Business Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Business Statistics 2e. Imported at revision 50ec917.