Author Question: A random variable X has a normal distribution with a mean of 250 and a standard deviation of 50 . ... (Read 60 times)

lidoalex

  • Hero Member
  • *****
  • Posts: 538
A random variable X has a normal distribution with a mean of 250 and a standard deviation of 50 . Given that X = 175, its corresponding value of Z is -1.50.
  Indicate whether the statement is true or false

Question 2

A random variable X has a normal distribution with mean 132 and variance 36 . If x = 120, its corresponding value of Z is 2.0.
  Indicate whether the statement is true or false



guyanai

  • Sr. Member
  • ****
  • Posts: 349
Answer to Question 1

T

Answer to Question 2

F



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Thyroid conditions may make getting pregnant impossible.

For a complete list of videos, visit our video library