« previous next »

Author Question: The distribution of scores on a test is mound-shaped and symmetric with a mean score of 78. If 68 of ... (Read 188 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jun 24, 2018
The distribution of scores on a test is mound-shaped and symmetric with a mean score of 78. If 68 of the scores fall between 72 and 84, which of the following is most likely to be the standard deviation of the distribution?
 
  A) 6 B) 12 C) 3 D) 2

Question 2

Classify the following random variable according to whether it is discrete or continuous.
  The blood pressures of a group of students the day before the final exam
 
  A) continuous B) discrete


Ksh22

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi
Young adults with low levels of parental support report significantly better scores on measures of ... Young adults with low levels of parental support report significantly better scores on measures of ...
Performing a PKU Test Performing a PKU Test
An Inkblot Similar to One of the Blots that Appear in the Rorschach Inkblot Test An Inkblot Similar to One of the Blots that Appear in the Rorschach Inkblot Test
Geographic distribution of hepatitis A prevalence (anti-HAV-antibody), 2005. Geographic distribution of hepatitis A prevalence (anti-HAV-antibody), 2005.
The Distribution of Growth Rates, 1975–2009 The Distribution of Growth Rates, 1975–2009
Video: Bone Healing Animation

For a complete list of videos, visit our video library