« previous next »

Author Question: Find the standard z-score such that 80 of the distribution is to the left of this ... (Read 22 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
on: Jul 24, 2018
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
Reply #1 on: Jul 24, 2018
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
Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


shaikhs

  • Sr. Member
  • ****
  • Posts: 312
Reply #3 on: Jul 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

The two bright stars are (left) Alpha Centauri and (right) Beta Centauri. The two bright stars are (left) Alpha Centauri and (right) Beta Centauri.
Patient receiving ultrasound treatment to the left elbow. Patient receiving ultrasound treatment to the left elbow.
Tummy rock. Standing on the recipient’s right side, rest your left hand on the forehead and your ... Tummy rock. Standing on the recipient’s right side, rest your left hand on the forehead and your ...
The cross-linking reaction in peptidoglycan synthesis (left) and inhibition of the transpeptidase The cross-linking reaction in peptidoglycan synthesis (left) and inhibition of the transpeptidase
To find the derivative use product rule To find the derivative use product rule
The expected value for a binomial probability distribution is _____. The expected value for a binomial probability distribution is _____.
Video: What is Reverse Osmosis?

For a complete list of videos, visit our video library