11.4 Practice

Organize the data displays that represent a normal distribution.

Groups:

(a) Normal Distribution

,

(b) Skewed Distribution

• 
• 
• 
• 
• 

What is the shape of a histogram of data that forms a normal distribution

• Bell Shaped Curve

• Skewed Right

• Skewed Left

• No enough information to determine the shape

Suppose the mean was 98 and the standard deviation was 12.

68% of the data is between​ (a)  

• 86-110
• 87-109
• 88-108
• 85-111

The median would be close to the value of the​ (a)  

• mean
• mode
• standard deviation
• range

Suppose the mean was 12 and the standard deviation was 3. Label the x-axis with the correct values.

a

b

c

d

e

f

g

18

21

3

9

15

6

13

8

12

4

95% of the data falls between ​ (a)   and ​ (b)  

• 6
• 18
• 9
• 12
• 15
• 21
• 3

Select a value that would be out of the ordinary for this situation

• 12

• 8

• 13

• 17

• 19

Find the standard deviation of the data set. Round to the nearest tenth

Mathematical Equivalence

ON

Here are Mila’s 5 quiz scores for semester 1, with each score being out of 50 points.

Find the mean

Mathematical Equivalence

ON

Here are Mila’s 5 quiz scores for semester 1, with each score being out of 50 points.

Find the median

Mathematical Equivalence

ON