At one college, GPA's have a bell-shaped distribution with a mean ...

[joesmith1212]

At one college, GPA's have a bell-shaped distribution with a mean of 2.9 and a standard deviation of 0.4. What percentage of students at the college have a GPA between 2.5 and 3.3?
 
  A) 99.7 B) 95 C) 68

Question 2

If H0 is true in a chi-square test of independence, then the expected and observed .
 
  a. means in a cell of a contingency table should be about equal
  b. standard deviations in a cell of a contingency table should be about equal
  c. frequencies in a cell of a contingency table should be unequal
  d. frequencies in a cell of a contingency table should be about equal

[Ahnyah]

Answer to Question 1

C

Answer to Question 2

D

[joesmith1212]

Great answer, keep it coming

[bimper21]

Thanks for the timely response, appreciate it