« previous next »

Author Question: Approximately what percentage of scores are between z=1 and z=2? a. 50 b. 68 c. 16 d. ... (Read 25 times)

jazziefee

  • Hero Member
  • *****
  • Posts: 505
on: Jun 19, 2018
Approximately what percentage of scores are between z=1 and z=2?
 
  a. 50
  b. 68
  c. 16
  d. 13.5

Question 2

Rich's first psychology exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 60 and a standard deviation of 6 . Rich's percentile rank would be approximately:
 
  a. 70.
  b. 84.
  c. 66.
  d. Cannot say from the information given.


briseldagonzales

  • Sr. Member
  • ****
  • Posts: 303
Reply #1 on: Jun 19, 2018
Answer to Question 1

d

Answer to Question 2

b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ... The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ...
Correlations between scores on a psychology test and number of boiled kumquats eaten per month Correlations between scores on a psychology test and number of boiled kumquats eaten per month
. In which distribution is the mean more “typical” of all scores? . In which distribution is the mean more “typical” of all scores?
Expected Distribution of IQ Scores Expected Distribution of IQ Scores
Percentage of Full Tryptophan Expression for trpR+ and trpR- Strains Percentage of Full Tryptophan Expression for trpR+ and trpR- Strains
Video: Oral Hygiene & Braces Animation

For a complete list of videos, visit our video library