The function that defines the probability distribution of a ...

[vHAUNG6011]

The function that defines the probability distribution of a continuous random variable is a
 a. normal function.
   b. uniform function.
   c. either normal of uniform depending on the situation.
   d. probability density function.

Question 2

Last school year, the student body of a local university consisted of 30 freshmen, 24 sophomores, 26 juniors, and 20 seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification. Freshmen 83 Sophomores 68 Juniors 85 Seniors 64 We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year. The expected frequency of seniors is
 a. 60.
  b. 20.
  c. 68.
  d. 64.

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Answer to Question 1

d

Answer to Question 2

a