Problem-Solving and Data Analysis

Chief Editor

Mar 27, 2024

Table of Contents

Take all 3 MCQs in interactive quiz mode with timer and progress tracking

Each rock in a collection of 70 rocks was classified as either igneous, metamorphic, or sedimentary, as shown in the frequency table. Classification Frequency igneous 10 metamorphic 33 sedimentary 27 If one of these rocks is selected at random, what is the probability of selecting an igneous rock?

Difficulty: Easy

\frac{10}{27}

\frac{10}{33}

\frac{10}{60}

\frac{10}{70}

A survey was conducted using a sample of history professors selected at random from the California State Universities. The professors surveyed were asked to name the publishers of their current texts. What is the largest population to which the results of the survey can be generalized?

Difficulty: Medium

All professors in the United States

All history professors in the United States

All history professors at all California State Universities

All professors at all California State Universities

A sample of oak has a density of 807 kilograms per cubic meter. The sample is in the shape of a cube, where each edge has a length of 0.90 meters. To the nearest whole number, what is the mass, in kilograms, of this sample?

Difficulty: Hard

588

726

897

1,107