Statistics Review Normal Distribution

Statistics Review Normal Distribution

12th Grade

15 Qs

quiz-placeholder

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Statistics Review Normal Distribution

Statistics Review Normal Distribution

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

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

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The normal curve is symmetrical about the mean.

True

False

3.

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%

4.

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%

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The area under the normal curve is 1.

True

False

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is NOT true about the normal distribution curve?

It is bell-shaped.

The mean, median, and mode are approximately equal

The smaller the standard deviation, the less spread in the curve.

It is asymmetrical.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

According to the empirical rule, how much of the data falls within 3 standard deviations? 

25%

68%

95%

99.7%

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