Statistics Intro

Between what two standard deviations of a normal distribution contain 68% of the data?

• one below and one above
• two below and two above
• two below and zero
• zero and two above

μ = 70 , σ = 8 , X = 50 . Find z score

• 2.5
• -2.5
• 5.2
• -5.2

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last between 12 and 15 days?

• 68%
• 34%
• 16%
• 2.5%

Tags

CCSS.HSF-LE.A.1B

Given a mean of 75 and a standard deviation of 7, what percentage of scores are above 82?

• 34%

• 81.5%

• 16%

• 2.5%

Tags

CCSS.HSS.ID.A.4

Given a mean of 75 and a standard deviation of 7, what percentage of scores are greater than 68?

• 34%

• 84%

• 95%

• 68%

Tags

CCSS.HSS.ID.A.4

Given a mean of 75 and a standard deviation of 7, how many students out of 500 would score higher than 89?

• 11

• 12

• 36

• 237

What is the median of this data set?

3 , 17 , 17 , 11 , 8 , 13 , 5 , 18

• 11

• 12

• 13

• 17

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mode of the data?

• 9

• 6, 7

• 7, 9

• 6, 7, 9

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Lizzy had test scores of:   72, 94, 108, 60
What is the RANGE of her test scores?

• 12
• 72
• 48
• 98

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mode in this set of numbers:
7, 14, 20, 3, 7, 14, 2, 14, 7

• 7
• 20
• 7 & 14
• none of the above

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5