Mean
What is the definition of Mean?
Is the average set of numbers.
What is the definition of Median?
What is the definition of Mode?
Is the number that appears the most in a data set.
Is the difference between the greatest and least number.
A teacher records the number of hours her students spend on homework each week: 2, 3, 2, 4, and 5. What is the mode of the hours spent on homework?
2
How do you find the Mean of data set?
Add all the numbers together, then divide the sum by the total number of numbers in the set.
How do you find the Median?
Arrange the numbers in order from least to greatest. The median is the middle number.
True or False
Can there be more than one Mode in a data set?
True
The Range is found by subtracting the largest number in the set from the smallest number.
A runner recorded the distances she ran each day over a week: 3 miles, 4 miles, 4 miles, 5 miles, and 6 miles. What is the median distance she ran?
4 miles
Find the Mean of this data set.
12, 16, 22, 30
20
What do you do if there are two middle numbers when finding the median?
Add the two middle numbers together and divide by 2 to find their average. This result is the median.
In the following data set: 3, 7, 7, 8, 10, what is the Mode?
7
Given the following numbers: 12, 18, 5, 22, and 10, what is the range?
17
A small bakery sells the following number of pastries each day over a week: 10, 15, 20, 25, and 30. Calculate the Mean and Median number of pastries sold.
Median:20
Find the Mean of this data set.
3, 7, 11, 15, 19
11
Find the Median of this data set.
5,9,14,18,22,26
16
In the following data set: 4, 5, 5, 6, 6, 7, what are the Modes?
5,6
The following data set represents the scores of students on a test: 55, 72, 65, 80, 90, and 45. What is the range of the scores?
45
A group of friends tracked the number of cookies they baked: 7, 3, 3, 5, 4. Calculate the Mean, Median, and Mode of the number of cookies baked.
Mean: 4
Median: 4
Mode: 3
The cost of 5 items is $12, $15, $25, $30, and $18. Find the Mean price of the items.
20
Sarah recorded the number of books she read each month for six months: 10, 2, 18, 6, 22, 14. What is the median number of books Sarah read per month?
12
During a survey, the number of pets owned by each family in a neighborhood was recorded as follows: 1, 2, 2, 3, 4, 4, 4, 5, 6. What is the Mode of the number of pets owned?
4
A teacher recorded the number of books read by her students over the summer: 3, 5, 8, 10, 15, and 20. What is the range of the number of books read?
17
A group of friends tracked the number of miles they ran each week: 10, 2, 18, 6, 22, 14. Calculate the Mean, Median, Mode, and Range of the miles run.
Mean:12
Median:12
Mode: No Mode
Range: 20