This topic contains a solution. Click here to go to the answer

Author Question: Suppose a population relative frequency distribution has mean = 7.5 and standard deviation = 1.5. ... (Read 66 times)

NClaborn

  • Hero Member
  • *****
  • Posts: 560
Suppose a population relative frequency distribution has mean  = 7.5 and standard deviation  = 1.5. The z score corresponding to x = 10.5 is
 
  A) 2 B) 3 C) -2 D) 1.5

Question 2

Find the 80th percentile for the following data: 20, 14, 12, 3, 12, 36, 60, 47, 21, 27, 20, 19, 34, 58, 35, 10, 6, 50, 36.
 
  A) 40 B) 12 C) 50 D) 47



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

phuda

  • Sr. Member
  • ****
  • Posts: 348
Answer to Question 1

A

Answer to Question 2

D





 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

For a complete list of videos, visit our video library