MAD practice

How do you find the mean of a set of numbers?

• add, then multiply by how many numbers there are

• add, then subtract by how many numbers there are

• add, then divide by how many numbers there are

• it's the same as the average

Tags

CCSS.6.SP.B.5C

How do you find the MAD of a set of numbers?

• 1) Find the mean.

  2) Hope and pray that the right answer falls out of the sky.

• 1) Find the mean.

  2) Find the difference of each data point from the mean.

  3) Find the mean of the differences.

Tags

CCSS.6.SP.B.5C

#1) Find the mean: 50, 30, 8, and 4

• 23

• 92

• 4

• 13

Tags

CCSS.6.SP.B.5C

#2) Match how far each data point (at the top) is from the mean of 23.

(Subtract each number from 23.)

• 7

• 8

• 19

• 30

• 15

• 4

• 27

• 50

#3) Find the MAD: 50, 30, 8, and 4.

(Remember, the differences you got on Step 2 were 27, 7, 15, and 19. Find the mean of those numbers!)

• 23

• 68

• 4

• 17

Tags

CCSS.6.SP.B.5C

#4) Find the mean: 18, 14, 20, and 12.

• 4

• 16

• 20

• 64

Tags

CCSS.6.SP.B.5C

#5) Match how far each data point (at the top) is from the mean of 16.

(Subtract each number from 16.)

• 4

• 18 and 14

• 2

• 20 and 12

• math teacher

• Mrs. Bothers

Tags

CCSS.6.SP.B.5C

#6) Find the MAD: 18, 14, 20, and 12

(Remember, the differences you got on Step 2 were 2, 2, 4, and 4. Find the mean of those numbers!)

• 3

• 4

• 6

• 12

Tags

CCSS.6.SP.B.5C

#7) Find the mean: 11, 4, 6, and 7

• 28

• 12

• 7

• 6

Tags

CCSS.6.SP.B.5C

#8) Match how far each data point (at the top) is from the mean of 7.

(Subtract each number from 7.)

• 4

• 7

• 1

• 11

• 0

• 4

• 3

• 6

Tags

CCSS.6.SP.B.5C