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Normal Distribution and the Empirical Rule

Authored by Anthony Clark

Mathematics

10th Grade

Normal Distribution and the Empirical Rule
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12 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 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

2.

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

3.

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

4.

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

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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

34%

50%

2.35%

13.5%

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What percent of people are 3 standard deviations above the mean?

.15

34

68

2.35

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

500 juniors at Central High School took the ACT last year. The scores were distributed normally with μ=24 and σ=4.

What percent of ACT scores are between 20 and 28?

34%

68%

81.5%

95%

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