Empirical Rule

Empirical Rule

12th Grade

20 Qs

quiz-placeholder

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Empirical Rule

Empirical Rule

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Medium

CCSS
HSS.ID.A.4, HSS.ID.A.3, HSS.ID.A.1

+1

Standards-aligned

Created by

Sergio Contreras

Used 342+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In a factory, the weight of the concrete poured into a mold by a machine follows a normal distribution with a mean of 1150 pounds and a standard deviation of 22 pounds. Approximately 99.7% of molds filled by this machine will hold weights in what interval? 

1084 to 1216 pounds 
1106 to 1150 pounds 
1106 to 1194 pounds 
1128 to 1172 pounds

Tags

CCSS.HSS.ID.A.4

2.

MULTIPLE CHOICE QUESTION

5 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

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which interval shows 95% of the data given a mean of 15 and a standard deviation of 3? 

9 to 21
12 to 18
6 to 24
13 to 16

Tags

CCSS.HSS.ID.A.4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What percent of people within 3 standard deviations of the mean?

99.7

34

68

95

Tags

CCSS.HSS.ID.A.4

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What percent of people within 2 standard deviations of the mean?

99.7

34

68

95

Tags

CCSS.HSS.ID.A.4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What percent of people within 1 standard deviation of the mean?

99.7

34

68

95

Tags

CCSS.HSS.ID.A.4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What percentage of the data is between 1 and 2 standard deviations

34%

50%

2.35%

13.5%

Tags

CCSS.HSS.ID.A.4

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