Which of the following is not an example of the relative frequency approach to probability?
A) The outcome of a game of craps based on your personal experience
B) The outcome of a game of roulette based on historical data
C) The outcome of a poker game based on the draw of one card
D) The actuarial schedule for a life insurance company
Q. 2What is P(Z > 1.2 )?
A) 0.1112
B) 0.8849
C) 0.1151
D) 0.6112
Q. 3What is the probability that there are more than three accidents next year?
A) 0.389
B) 0.440
C) 0.512
D) 0.641
Q. 4If A and B are independent events with P(A ) = 0.60 and P(A B ) = 0.60, then P(B ) is:
A) 1.20
B) 0.60
C) 0.36
D) Cannot be determined from the information given.
Q. 5The coefficient of variation measures variability in a positively skewed data set relative to the size of the median.
Indicate whether the statement is true or false
Q. 6The number of television sets produced from an assembly line each day is known to have a standard deviation of 17.4 sets per day. The production line averaged 452.3 sets per day for 20 randomly selected days.
Which of the following represents a 95 confidence interval for the population mean number of sets per hour?A) 452.3 9.4
B) 452.3 + 11.3
C) 452.3 13.8
D) 452.3 7.63
Q. 7A professor is looking for a volunteer for a project. She chooses the individual whose name is first in alphabetical order. This is an example of a simple random sample.
Indicate whether the statement is true or false
Quick Reply
