« previous next »

Author Question: If we multiply a set of data by a constant, such as converting feet to inches, we will a. leave ... (Read 23 times)

MGLQZ

  • Hero Member
  • *****
  • Posts: 579
on: Jun 20, 2018
If we multiply a set of data by a constant, such as converting feet to inches, we will
 
  a. leave the mean and variance unaffected.
  b. multiply the mean and the standard deviation by the constant.
  c. multiply the mean by the constant but leave the standard deviation unchanged.
  d. leave the mean unchanged but alter the standard deviation.

Question 2

Which of the following sets of data is likely to have the smallest standard deviation?
 
  a. the distribution of SAT scores for students from your high school
  b. the distribution of heights of students in an elementary school
  c. the grade point averages of students from your high school's honors biology class
  d. the amount that you and your friends pay for college tuition


Tonyam972

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Summary of US Census Data Summary of US Census Data
Recognizing data clusters Recognizing data clusters
This girl ran four spinning machines in a cotton mill in Whitnel, North Carolina. Only 4 feet, 3 inc This girl ran four spinning machines in a cotton mill in Whitnel, North Carolina. Only 4 feet, 3 inc
Converting cubic graph to function Converting cubic graph to function
Find a quadractic equation that models the data in standard form Find a quadractic equation that models the data in standard form
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
Video: Kinetic parameters & Kinetic experiment

For a complete list of videos, visit our video library