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The normal distribution

Authored by Jared Young

Mathematics

11th - 12th Grade

CCSS covered

Used 36+ times

The normal distribution
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11 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the the total area under the standard normal distribution curve?

100
25
.5
1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If 10 is added to every value in a set of data, what will happen to the value of the mean?

it will increase by 10
it will decrease by 10
it will stay the same
it will both increase and decrease

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If 10 is added to every value in a set of data, what will happen to the value of the standard deviation?

it will increase
it will decrease
it will stay the same
it will both increase and decrease

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is NOT true about the standard normal distribution?

It is bell-shaped.
It is unimodal.
The mean is 0 and the standard deviation is 1.
It is asymmetrical.

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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%

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The mean life of a tire is 30,000 km. The standard deviation is 2000 km.

Then, 68% of all tires will have a life between ___________ km and __________ km.

 28,000 km and 32,000 km.
24,000 km and 34,000 km.
26,000 km and 34,000 km.
27,000 km and 31,000 km.

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.3

CCSS.HSS.MD.A.2

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Find P (-1.26 < z < 3.25). 

0.0047
0.9204
0.8956
0.4981

Tags

CCSS.HSS.ID.A.4

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