Author Question: Find the standard z-score such that 80 of the distribution is to the left of this ... (Read 52 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
Find the standard z-score such that 80 of the distribution is to the left of this value.

Question 2

Find the area under the standard normal curve between z = 0.25 and z = 2.75.



shaikhs

  • Sr. Member
  • ****
  • Posts: 312
Answer to Question 1

z = 0.84

Answer to Question 2

P(0.25 < z < 2.75) = 0.4970  0.0897 = 0.4073



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

beccaep

  • Hero Member
  • *****
  • Posts: 535
Both answers were spot on, thank you once again



shaikhs

  • Sr. Member
  • ****
  • Posts: 312

 

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

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?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

For a complete list of videos, visit our video library