Author Question: The mean of forty sales receipts is 69.75 and the standard deviation is 10.25 . Using Tchebysheff's ... (Read 64 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
The mean of forty sales receipts is 69.75 and the standard deviation is 10.25 . Using Tchebysheff's Theorem, at least 75 of the sales receipts were between 49.25 and 90.25.
  Indicate whether the statement is true or false

Question 2

Pretest versus posttest (before versus after) studies are usually independent samples.
  Indicate whether the statement is true or false



deja

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

T

Answer to Question 2

F



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

For a complete list of videos, visit our video library