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6.1-6.2 Review Statistics

Authored by April Tuten

Mathematics

12th Grade

CCSS covered

Used 3+ times

6.1-6.2 Review Statistics
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the percentage of data that falls within two standard deviations of the mean? (Empirical Rule)

68%

99.7%

95%

98%

Tags

CCSS.HSS.ID.A.4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Empirical (68-95-99.7) Rule can be applied only if data is ....

Normally Distributed

Uniform

Skewed

Symmetric

Tags

CCSS.HSS.ID.A.4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which interval shows 99.7% of the data given a mean of 15 and a standard deviation of 3? (Use the Empirical Rule)

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

Tags

CCSS.HSS.ID.A.4

4.

MULTIPLE CHOICE QUESTION

5 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%

Tags

CCSS.HSS.ID.A.4

5.

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.

(Empirical Rule)

 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

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The 40 yards sprint times for a soccer team are found to be normally distributed with a mean of 5.2 seconds and a standard deviation of 0.3 seconds.  What is the z-score for a player who runs a time of 5.6 seconds?

-1.33
1.33
0.88
1.02

Tags

CCSS.HSS.ID.A.4

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5. What is the probability that in a week there would be fewer (less) than 5 accidents?

0.6915

0.1762

0.8238

-0.93

Tags

CCSS.HSS.ID.A.4

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