Statistics Algebra

Statistics Algebra

11th Grade

12 Qs

quiz-placeholder

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Statistics Algebra

Statistics Algebra

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

Created by

Anthony Clark

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 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

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5.  What proportion of weeks would you expect to have more than 7 accidents?

0.3446

0.2856

0.4

0.6554

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5.  What proportion of weeks would you expect to have less than 5 accidents?

0.6915

0.1762

0.8238

-0.93

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5.  What proportion of weeks would you expect to have between 5 and 7 accidents?

0.1762

0.8238

0.6554

0.4792

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the area under the standard normal curve to the right of z = -2.67.

0.0869

0.9962

0.0008

0.1234

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find P (-1.26 < z < 3.25). 

0.0047

0.9204

0.8956

0.4981

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Annual U.S. per capita orange use: μ =11.4 lb, σ = 3lb. What annual per capita use of oranges represents the 10th percentile?

7.56 lbs

13.42 lbs

8.29 lbs 

9.38 lbs

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