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Normal distribution

Authored by Allison Combs

9th - 12th Grade

CCSS covered

Used 1+ times

Normal distribution
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10 questions

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1.

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

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Between what two standard deviations of a normal distribution contain 68% of the data?

one below and one above
two below and two above
two below and zero
zero and two above

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 mean = 70 , standard deviation = 8 , element = 50 . Find z score

2.5
-2.5
5.2
-5.2

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The z-score represents.....

the amount of standard deviations a data value is above or below the mean.
the percentile the data value is above or below the mean.
the amount of standard deviations a data value is above or below the median.
the percent the data value is above or below the mean.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is NOT true about the standard normal distribution?

It is bell-shaped.
It is unimodal.
The score of all z-scores is zero
It shows the median of the data set

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A national achievement test is administered annually to 3rd graders. The test has a mean score of 100 and a standard deviation of 15. If Jane's z-score is 1.20, what was her score on the test?

82
88
100
118

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

5
6
9
11

Tags

CCSS.6.EE.A.2C

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