Mean Missing Data - Worksheet 2

Oct 22, 2026

Uploaded by Mary Man

This document provides a structured educational resource for students to practice calculating missing values in a data set when the mean is already known. It contains two main sections: a student worksheet consisting of 18 mathematical problems, each featuring a set of numbers with one missing value and a specified mean; and a comprehensive answer key that details the step-by-step methodology for solving each problem. The exercises are designed to reinforce the algebraic relationship between the mean, the number of values in a set, and the total sum. By requiring users to first calculate the total sum by multiplying the mean by the count of values and then subtracting the sum of the known values, this worksheet helps learners develop a deeper understanding of statistical averages and basic arithmetic problem-solving techniques. The clarity of the tables makes it an ideal tool for self-study, classroom practice, or homeschooling environments, focusing on precision and logical thinking in mathematics.

LanguageEnglish

CategoryExam

FormatPDF

Pages2

Reading Time5 min

AccessFree to download

Mean Missing Data Worksheet

Practice Problems

Mean Missing Data Answer Key

Solutions Table

FAQs

How do you find a missing data point when the mean is known?

To find the missing data point, first multiply the mean by the number of values in the set to find the total sum. Then, subtract the sum of all known data points from this total to identify the missing value.

What is the relationship between the mean, total sum, and count of values?

The mean is calculated by dividing the total sum of all values by the number of values. Therefore, the total sum is equal to the product of the mean and the count of values.

Can this method be applied to sets with fractions or decimals?

Yes, the methodology remains consistent regardless of the number type. As demonstrated in problem 18, even with mixed fractions, the process of calculating the total sum and subtracting known values applies effectively.

Oct 22, 2026

Uploaded by Mary Man