Author Question: Survey your friends about the number of siblings they have and the length of the last phone call ... (Read 61 times)

Mollykgkg · **on:** Jul 24, 2018

Survey your friends about the number of siblings they have and the length of the last phone call they had with their boyfriend / girlfriend. The two variables in question 30 are either discrete or continuous. Which are they and why?

Question 2

Characteristics possessed by experimental units are called:
a. data sets
b. descriptive statistics
c. internal data
d. variables

nickk12214 · **Reply #1 on:** Jul 24, 2018

Answer to Question 1

Number of siblings that a friend has is a discrete random variable, since it can only assume a countable number of numerical values. A value of 1.68, for example, would not make sense.

Length of last phone call to boyfriend / girlfriend is a continuous random variable, since it can assume an uncountable number of numerical values. In other words, length is a measurement and can assume any value along a line interval including all possible fractions.

Answer to Question 2

D