Name:______Date:______
Mean, Median, Mode, and Range Study Guide
Mean: the average of a set of numbers, found by adding the numbers in the set and then dividing by the amount of numbers in the set.
Range: The difference between the greatest number (called the maximum) and the least number (called the minimum) in a set of data. Subtract the greatest and the least to find the range.
Mode: The number that occurs most often in a set of data.
Median: The middle number in a set when the numbers are ordered from least to greatest. If there are 2 numbers in the middle, then find the mean of those 2 numbers.
1. Mr. Thomassen surveyed his class and created a set of data representing the number of siblings each student has. The data looks like this: 2, 1, 1, 1, 1, 2, 3, 4, 0, 1, 2, 5, 1, 1, 3, 1, 4, 1, 1, 4, 5, 2
What is the mode of the data? ___
2. In Mr. Thomassen’s class, five students took a quiz worth 100 points. The scores were as follows:
85, 75, 98, 55, and 99.
What is the mean score? _____
3. The following numbers are how many rushing yards Jalen Hurts has gained in the first seven games of Alabama’s season this year: 32, 19, 146, 54, 25, 20, 132
What is the mean number of rushing yards Jalen Hurts has gained this season? ___
4. The following numbers are the percent of field goals made by Adam Griffith (Bama’s kicker) per game this season. 100, 50, 66.7, 100, 66.7, 0, 0
What is the median percent of field goals Griffith has made this season? ____
5. The following lists the number of points each player scored in four games last season.
Kobe Bryant: 22, 36, 37, 28
Dwight Howard: 14, 30, 24, 27
Kevin Durant: 31, 29, 29, 37
Which player has the greatest range of scores? ______
6. Mr. Taylor decided to give a 10 point quiz to six of his students. The students received the following scores:
5, 5, 5, 10, 3, 8
What is the mode of the data? _____
7. Dr. Howard loves to read books. He’s been reading so much lately that he finishes a novel a day. Below you will find out how much money he has spent per day on the purchase of new books over the last 10 days:
$10, $10, $10, $10, $12, $10, $10, $5, $3, $1
What is the range of prices he paid for the books? ____
8. Unlike many elections for public office where a person is elected strictly based on who gets the most votes, the election for President of the United States is determined by a process called the Electoral College. Each state receives an allocation of electoral votes. The larger a state’s population, the more electoral votes it has. The following table shows the allocation of electoral votes for each state and Washington D.C. Make a line plot of the data, then find the mode. _____
9. Tom sold boxes of chocolate candy for his school’s fundraiser. He plotted the number of boxes in the line plot below.List the number of boxes sold each day in order least to greatest then find all measures of center.
_____, _____, _____, _____, _____, _____, _____, _____, _____, _____
mean: _____median: _____mode: _____