March 29 Introduction to Measures of Center SOL 6.11

Introduction to Mean Median and Mode

SOL 6.11a

What is statistics? Statistics is the process of

• collecting

• organizing

• and interpreting data

• Guess what question I am going to ask?

Multiple Select

What is statistics? Statistics is the process of c_____, o______ and i________ data.

• coaching

• interpreting

• oganizing

• collecting

• increasing

What is central tendency? Measure of central tendency is

• A value (number) that attempts to describe the middle of the data

• For example, mean, median, and mode are measures to describe the middle of data

• Today, we are going to define these terms

What is the mean?

• Another name for [finding the ] average

• To find the mean

• Get the sum of the data

• Divide by the number of numbers for the data

• Get ready for a question. . .

Multiple Choice

To get the ______, we

1. Find the sum of the data

2. Divide by the total numbers in the data set.

• Median

• Mean

• Mode

• Range

Multiple Choice

Find the mean of the data set: 0, 4, 5. (find the sum, divide the the number of numbers)

• 9

• 5

• 4

• 3

• 0

What is the median? The median is the middle value of the data. To find the median:

• Arrange the numbers in numerical order

• How many numbers do you have?

• Odd number of data--the middle number is the median

• Even number of data--find the mean of the middle two numbers

• 
  

Multiple Choice

To get the _______,

1. Order the numbers in the data set from smallest to largest

2. Find the middle number in the data set.

• Mean

• Median

• Mode

• Range

Multiple Choice

What is the median? The number of goals scored by a school’s soccer team in 7 games so far this season is 0, 2, 3, 3, 3, 5, 5.

• 0

• 2

• 3

• 5

• 7

What is the mode? The mode is the data that occurs the most. To easily find the mode:

• Order data from least to greatest

• Count how many times each number occurs.

• The number that occurs the most is the mode!

Multiple Choice

To get the ________, select the number that occurs the most in a data set (the most popular number).

• Mean

• Median

• Mode

• Range

Multiple Choice

What is the mode? The number of goals scored by a school’s soccer team in 7 games so far this season is 0, 2, 3, 3, 3, 5, 5. Find the mode.

• 0

• 2

• 3

• 5

• 7

Pre/Post test in Peardeck

Guided Practice in Desmos