MMMR Quiz

Dr. Dre is a dentist. He needs to report on the average number of cavities that his patients have. His patients have: 2,0,1,5,6,3 cavities. What would he need to do to find the mean?

• 2 + 0 + 1 + 5 + 6 + 3
• 2 + 0 + 1 + 5 + 6 + 3 then divide by 6
• 2 + 0 + 1 + 5 + 6 + 3 then divide by 2
• Put them in order and find the middle number

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What would he do to find the range of his scores?

• 155 + 165
• 155 - 142
• 193 + 127
• 193 - 127

What is the mode?

• # you see the most
• the average
• biggest - smallest
• the middle #

How do you find the median of these numbers:
4,2,7,4,3

• Look at the middle number which is 7
• Add them up and divide by how many you added
• Put them in order and find the middle which is 4
• Subtract Biggest and Smallest which is 7-2 = 5

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most

To find the _________ you add up all the numbers and then divide by how many numbers you have.

• Mean
• Median
• Mode
• Range

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number
• Add the two numbers in the middle & then divide by two.
• They are both the median
• None of the above

To find the ________ you put all numbers in order from least to greatest and find the number that is in the middle.

• Mean
• Median
• Mode
• Range

A data set can have more than one mode

• True
• False

A data set can have more than one median?

• True
• False