A study at an amusement park found that, of 10,000 families at the park, 1530 had brought one child, 1810 had brought two children, 2520 had brought three children, 1680 had brought four children, 1210 had brought five children, 540 had brought six children, and 710 had not brought any children. Find the expected number of children per family at the amusement park.

A study at an amusement park found that, of 10,000 families at the park, 1530 had brought one child, 1810 had brought two children, 2520 had brought three children, 1680 had brought four children, 1210 had brought five children, 540 had brought six children, and 710 had not brought any children. Find the expected number of children per family at the amusement park.

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Description: A study at an amusement park found that, of 10,000 families at the park, 1,530 had brought one child, 1,810 had brought two children, 2,520 had brought three children, 1,680 had brought four children, 1,210 had brought five children, 540 had brought

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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A study at an amusement park found that, of 10,000 families at the park, 1,530 had brought one child, 1,810 had brought two children, 2,520 had brought three children, 1,680 had brought four children, 1,210 had brought five children, 540 had brought six children, and 710 had not brought any children.

Find the expected number of children per family at the amusement park.

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