Search Header Logo

APS Standard Deviation, %tile, z-scores

Authored by David Ferris

Mathematics

9th - 12th Grade

CCSS covered

Used 16+ times

APS Standard Deviation, %tile, z-scores
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Research indicates that the standard deviation of typical human body temperature is 0.4 degree Celsius (C). Which of the following represents the standard deviation of typical human body temperature in degrees

Fahrenheit (F), where F = (9/5)C + 32 ?

9/5(0.4) + 32

9/5(0.4)

9/5(0.4)2

(9/5)2(0.4)

(9/5)2(0.4)2

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A company determines the mean and standard deviation of the number of sick days taken by its employees in one year. Which of the following is the best description of the standard deviation?

Approximately the mean distance between the number of sick days taken by individual employees and the mean number of sick days taken by all employees

Approximately the median distance between the number of sick days taken by individual employees and the median number of sick days taken by all employees

The distance between the greatest number of sick days taken by an employee and the mean number of sick days taken by all employees

The number of days separating the fewest sick days taken and the most sick days taken when considering all employees

Thenumberofdaysseparatingthefewestsickdaystakenandthemostsickdaystakenwhenconsidering the middle 50 percent of the distribution

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The random variable X is normally distributed with mean 5 and standard deviation 25. The random variable Y is defined by Y = 2 + 4X. What are the mean and the standard deviation of Y ?

The mean is 20 and the standard deviation is 102.

The mean is 20 and the standard deviation is 50.

The mean is 22 and the standard deviation is 102.

The mean is 22 and the standard deviation is 100.

The mean is 22 and the standard deviation is 50.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the percentile for a height of 175?

75th

73rd

71st

69th

67th

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Bill's z-score for his time in the 100 meter race is z= –1.56. Sam's z-score for the same race is z= –1.34. Which runner is faster?

Bill

Sam

Not enough information.

Tags

CCSS.HSS.ID.A.4

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?