Recognizing Normal Distributions

Recognizing Normal Distributions

12th Grade

15 Qs

quiz-placeholder

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Recognizing Normal Distributions

Recognizing Normal Distributions

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Hard

Created by

Anthony Clark

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

According to the empirical rule, what percentage of data falls within 1 standard deviation of the mean?

25%

68%

95%

99.7%

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

According to the empirical rule, how much of the data falls within 2 standard deviations of the mean?

25%

68%

95%

99.7%

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The area under the normal curve is 1.

True

False

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If this is the graph of data normally distributed with a mean of 30 and a standard deviation of 5, what label (number) is written at the blue circle?

20

15

40

30

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If this is the graph of data normally distributed with a mean of 30 and a standard deviation of 5, what label (number) is written at the blue circle?

40

35

45

50

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Company pack coffee in bags marked as 250 g. A large number of packs of coffee were weighed and the mean and standard deviation were calculated as 255 g and 2.5 g respectively. Assuming this data is normally distributed, what percentage of packs are underweight?

2.5%

3.5%

4%

5%

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The ages of the population of people living in Meru area in Ipoh are Normally distributed with mean 43 and standard deviation 14


The town has a population of 5,000.

How many would you expect to be aged between 22 and 57?


You can use this Standard Normal Distribution curve:

1750

3860

3870

4330

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