The probability that a football game will go into overtime is 16. In 120 randomly selected football ...

The probability that a football game will go into overtime is 16. In 120 randomly selected football games, what is the mean and the standard deviation of the number that went into overtime?
 
  A) mean: 19.2; standard deviation: 4.01596813 B) mean: 19.2; standard deviation: 4.38178046
  C) mean: 18; standard deviation: 4.01596813 D) mean: 18; standard deviation: 4.38178046

Q. 2

There are 30 chocolates in a box, all identically shaped. There are 11 filled with nuts, 10 filled with caramel, and 9 are solid chocolate. You randomly select one piece, eat it, and then select a second piece.
 
  Is this an example of independence? Answer Yes or No. A) No B) Yes

Q. 3

A medical journal published the results of an experiment on insomnia. The experiment investigated the effects of a controversial new therapy for insomnia.
 
  Researchers measured the insomnia levels of 33 adult women who suffer moderate conditions of the disorder. After the therapy, the researchers again measured the women's insomnia levels. The differences between the the pre- and post-therapy insomnia levels were reported. What is the treatment in this experiment? A) the therapy
  B) the 33 adult women who suffer from insomnia
  C) the disorder (insomnia or no insomnia)
  D) the differences between the the pre- and post-therapy insomnia levels

Q. 4

A local concert center reports that it has been experiencing a 15 rate of no-shows on advanced reservations. Among 150 advanced reservations, find the probability that there will be fewer than 20 no -shows.
 
  Round the standard deviation to three decimal places to work the problem. A) 0.2451 B) 0.7549 C) 0.7967 D) 0.3187

Q. 5

According to insurance records, a car with a certain protection system will be recovered 85 of the time. If 500 stolen cars are randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen?
 
  A) mean: 425; standard deviation: 7.98435971 B) mean: 425; standard deviation: 63.75
  C) mean: -2075: standard deviation: 7.98435971 D) mean: -2075: standard deviation: 63.75

Q. 6

Classify the statement as an example of classical probability, empirical probability, or subjective probability. It is known that the probability of hitting a pothole while driving on a certain road is 1.
 
  A) empirical probability B) classical probability C) subjective probability

Q. 7

A medical journal published the results of an experiment on depression. The experiment investigated the effects of a controversial new therapy for depression.
 
  Researchers measured the depression levels of 98 adult women who suffer moderate conditions of the disorder. After the therapy, the researchers again measured the women's depression levels. The differences between the the pre- and post-therapy depression levels were reported. What is the response variable in this experiment? A) the differences between the the pre- and post-therapy depression levels
  B) the 98 adult women who suffer from depression
  C) the disorder (depression or no depression)
  D) the therapy