« 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 193 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?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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 horizontal fraction bar was introduced by the Arabs.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

A medical assistant labels the allergens for a patch test. A medical assistant labels the allergens for a patch test.
Performing a Spirometry Test to Measure Forced Vital Capacity Performing a Spirometry Test to Measure Forced Vital Capacity
Mean scores for Erikson’s stage VI (Intimacy) for two cohorts. Scores for both cohorts increase ... Mean scores for Erikson’s stage VI (Intimacy) for two cohorts. Scores for both cohorts increase ...
Adults in the middle-aged group (37–42 years) score higher on measures of generativity than either ... Adults in the middle-aged group (37–42 years) score higher on measures of generativity than either ...
Distribution and Forms of Precipitation: Snow Distribution and Forms of Precipitation: Snow
Distribution of Fluids in a Human Body Distribution of Fluids in a Human Body
Video: Double Stranded DNA Molecule Animation

For a complete list of videos, visit our video library