Intro to Mean & SP Practice

Measure of Center Practic

THIS IS AN EXTRA CREDIT OPPORTUNITY

• Earn points for all your RIGHT answers

• All the points you earn will be added to this week's Spiral Review!

• you have to answers ALL the questions to get the points your earn

When finding the Mean...

• Step #1: count the total amount of numbers in the data

• Step #2: add all the numbers in the data together

• Step #3: divide the sum (answer to step 2) by the total numbers in the data (answer to step 1)

Multiple Choice

What is Step 1 for Finding the Mean?

• Put the numbers in order from least to greatest

• Count the total numbers in the data

• Divide by the total numbers in the data

• Add all the numbers together

Multiple Choice

What is Step 2 for Finding the Mean?

• Put the numbers in order from least to greatest

• Divide by 2

• Divide by the total numbers in the data

• Add all the numbers together

Multiple Choice

What is Step 3 for Finding the Mean?

• Put the numbers in order from least to greatest

• Divide by 2

• Divide by the total numbers in the data

• Circle your answer

Mean can have a decimal!

• Include only the 2 numbers AFTER your decimal in your answer.

Multiple Choice

If the mean is 2.534821,

what would you enter in as your answer?

• 2

• 2.5

• 2.53

• 2.534

Multiple Choice

If the mean is 62.27,

what would you enter in as your answer?

• 62

• 62.27

• 62.2

• 62.9

Multiple Choice

If the mean is 97.4,

what would you enter in as your answer?

• 97

• 97.4

• 97.40

• 98

When finding the Mean...

• Step #1: count the total amount of numbers in the data

• Step #2: add all the numbers in the data together

• Step #3: divide the sum (answer to step 2) by the total numbers in the data (answer to step 1)

ANSWER

What's Range again?

Multiple Choice

What is the range?

• The number in the middle

• the biggest number MINUS the smallest number

• The number that appears most often

Let's review EVERYTHING

You should have your notes out!

Multiple Choice

What is the median?

• The number in the middle when the numbers are in order from least to greatest.

• The average

• The number that appears most often.

Multiple Choice

A data set can have more than one mode

• True

• False

Multiple Choice

To find the average, or mean, of a set of numbers, add up all the numbers and divide by...

• The number of items in the set.

• The smallest number

• The largest number

Multiple Choice

When you are finding the MEDIAN and 2 numbers are in the middle, what do you do?

• List both of the numbers as the Median.

• Add the two numbers together and divide by 2.

• Pick the one that you want.

Multiple Choice

Which Measure of Center does the work represent?

• Mean

• Mode

• Median

• Range

Multiple Choice

Which Measure of Center does the work represent?

• Mean

• Mode

• Median

• Range

Multiple Choice

Which Measure of Center does the work represent?

• Mean

• Mode

• Median

• Range

Multiple Choice

Which Measure of Center does the work represent?

• Mean

• Mode

• Median

• Range