This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Scores on an English test are normally distributed with a mean of 31.4 and a standard deviation of ... (Read 83 times)

AEWBW

  • Hero Member
  • *****
  • Posts: 579
on: Jul 25, 2018
Scores on an English test are normally distributed with a mean of 31.4 and a standard deviation of 8.9. Find the 41st percentile.
 
  A) 29.4 B) 26.1 C) 36.7 D) 33.4

Question 2

Assume that the random variable X is normally distributed with mean and standard deviation Find the 87th percentile for X.
 
  A) 66.44 B) 96.44 C) 89.72 D) 93.56


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

alexisweber49

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 25, 2018
Answer to Question 1

A

Answer to Question 2

D


AEWBW

  • Member
  • Posts: 579
Reply 2 on: Jul 25, 2018
Excellent

TheDev123

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Valgus Stress Test Valgus Stress Test
Ankle Reflex Test Ankle Reflex Test
Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of
If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ... If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ...
The Ames test, which screens compounds for potential mutagenicity The Ames test, which screens compounds for potential mutagenicity
Standard Symbols Used in Pedigrees Standard Symbols Used in Pedigrees
Video: Electromagnetic Spectrum, Chlorophyll and Pigment & Light

For a complete list of videos, visit our video library