Standard Deviation

A makeup company is packing foundation bottles with 4 oz. of product in each bottle. What size of standard deviation would the makeup company want with their foundation product?

• Negative Standard Deviation

• Small Standard Deviation

• Large Standard Deviation

• Standard Deviation isn't relevant

Spongebob has analyzed how many Krabby Patties he has made over the past week:

55, 62, 78, 66, 90, 101, 99

What is Spongebob's mean and standard deviation?

• mean = 75.5

  SD = 16.6

• mean = 78.7

  SD = 17.1

• mean = 81.1

  SD = 18.2

• mean = 72.2

  SD = 15.3

Teachers are asked how many apples they get in a year from students:

2, 5, 4, 11, 12, 3, 2, 8

What is the standard deviation?

• 2.1

• 5.5

• 4.1

• 3.7

• There is no equation for standard deviation

What is the symbol representation for VARIANCE?

• There is no equation for variance

Captain America's number of battles in the past five years are:

12, 18, 13, 10, 17

What is the mean and standard deviation of his battles?

• mean = 14

  SD = 3

• mean = 13

  SD = 2

• mean = 15

  SD = 4

• mean = 16

  SD = 5

If the standard deviation is 262, what is the variance?

• 65642

• 524

• 68644

• 69802

If the variance is 75622, what is the standard deviation?

• 208

• 275

• 289

• 299