The sample correlation coefficient measures the strength and direction of the linear relationship between two variables.
Indicate whether the statement is true or false
Q. 2Which of the following is not a condition of a discrete probability distribution?
A) Each outcome in the distribution needs to be mutually exclusive with other outcomes in the distribution.
B) The probability of a success must exceed the probability of a failure.
C) The probability of each outcome, P(x), must be between 0 and 1 (inclusive).
D) The sum of the probabilities for all the outcomes in the distribution needs to add up to 1.
Q. 3Your business statistics class had an exam last week. The average exam score for the class is an example of ______________.
A) secondary data
B) qualitative data
C) descriptive statistics
D) inferential statistics
Q. 4Any normally distributed values can be standardized with z-scores.
Indicate whether the statement is true or false
Q. 5A survey of adults who typically work full-time from home recorded their current education levels. The results are shown in the table below.
Education Level Frequency
Bachelor's degree or higher 37
Some college 13
High school diploma only 7
Less than high school diploma 3
Calculating the probability that a randomly selected adult who works from home and has a bachelor's degree or higher is using ________ probability.
A) empirical
B) simple
C) subjective
D) classical
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