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

Author Question: About 95.4 of the values of a normal random variable are within approximately how many standard ... (Read 134 times)

809779

  • Hero Member
  • *****
  • Posts: 579
About 95.4 of the values of a normal random variable are within approximately how many standard deviations of its mean?
 a. 1.7
  b. 2
  c. 2.5
  d. 3

Question 2

We can use the normal distribution to make confidence interval estimates for the population proportion, p, when _____.
 a. np  5
  b. n(1  p)  5
  c. p has a normal distribution
  d. np  5 and n(1  p)  5



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

KKcool

  • Sr. Member
  • ****
  • Posts: 340
Answer to Question 1

b

Answer to Question 2

d




809779

  • Member
  • Posts: 579
Reply 2 on: Jun 24, 2018
Wow, this really help


tkempin

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

For a complete list of videos, visit our video library