Approximately what proportion of the observations is greater than ...

[09madisonrousseau09]

Approximately what proportion of the observations is greater than 572?
 
  What will be an ideal response?

Question 2

The shape of the normal probability distribution is determined by the population standard deviation .
 
  Small values of  reduce the height of the curve and increase the spread; large values of  increase the height of the curve and reduce the spread. Indicate whether the statement is true or false

[dajones82]

Answer to Question 1

The value 572 is three standard deviations above the mean; hence the Empirical Rule implies that the area between the mean and 572 is approximately 1.00 / 2 = 0.50. Therefore the proportion of the observations greater than 572 is approximately 0.0.

Answer to Question 2

FALSE

[09madisonrousseau09]

Thank you

[dajones82]

No problemo