Purchase Solution

Mean and Median

Not what you're looking for?

Ask Custom Question

How can the mean and median be used to estimate how well a class does on a test?

Explain how extreme value changes each and when each one is appropriate.

Purchase this Solution
Solution Summary

The expert examines mean and median by use to estimate how well a class does on a test. A complete, neat and step-by-step solution is provided.

Solution Preview

(a) The mean of a set of numerical data is the sum of the set divided by the number of observations, that is, their average. Therefore, by calculating the mean score for a class of students, we can determine the performance of the class on an average. This is the simplest measure to calculate.

The median of a distribution is the value which divides the distribution so that an equal number of values lie on either ...

Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

View More Free Quizzes
Related BrainMass Solutions

  • Mean and Median as the Best Measures of Central Tendency

    median and 50% of the values are above the median).

  • Measures of Central Tendency: Mean, Median; constructing CI

    148415 Mean, median, 95% Confidence Interval are examined. How does changing a data value affect the mean and the median? How does removing a value affect the mean and the median? These questions are answered and more.

  • Mean vs. Median

    And if the data are skewed left (there are low outlying values), the mean will be lower than the median. If the data aren't skewed, then the mean and the median should be approximately equal.

  • When to use Median and Mean?

    Hi there, I hope this brief explanation of mean and median will help you with your question. To begin with, mean and median are generally not interchangeable when analyzing data.

  • The Median and Mean Prize Amount on TV Show, Deal or No Deal

    Are the mean and median close to each other? Explain why this makes sense. (e) (3) How many and what proportion of the prize amounts are greater than the mean?

  • Properties of Data Distributions

    Mean = Median = 50. In a normal distribution the mean is equal to the median and the distribution is evenly spread on both sides of the mean. b. Mean = 50, Median = 40.

  • concept of median, mean and mode

    468550 Concepts of median, mean and mode Create a set of exam scores (for a 100-point exam) for a hypothetical class of ten students in which a. The mean, median, and mode are all the same. b.

  • Mean, Median and Mode

    267251 Mean, Median and Mode The responses of a sample of 1020 people who were asked if the air quality in their community is better or worse than it was 10 years aga are shown below. Find the mean, median and mode of the date.

  • Mean and Median Measures of Central Tendency

    163342 Mean and Median Measures of Central Tendency Please address the following question: When is the mean the best measure of central tendency? When is the median the best measure of central tendency?

  • Mean and Median

    215862 Mean and Median Hypothetical Values Using 8 hypothetical values of sample data, calculate the mean and median. How does the mean differ from the median? 8, 6, 2, 7, 8, 5, 1, 3 Here, we have four different values.

View More Related Solutions