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  A class consists of 15 women and 81 men.  If a student is randomly selected, what is the probability that the student is a woman?

In a Kelton Research Poll, 1114 Americans 18 years of age or older were called after their telephone numbers were randomly generated by a computer, and  36% of the respondents said they believed in the existence of UFOs.

Blood lead levels of low, medium and high used to describe the relationship between lead and IQ.

  A certain group of women has a 0.43% rate of red/green color blindness.  If a woman is randomly selected, what is the probability that she does not have red/green color blindness. Do not round.

  As a procedure is repeated again and again, the relative frequency of an event tends to approach the actual probability.  This is known as

Which of the following is a probability? 0  1.5

Find the median for the given sample data.  The number of vehicles passing through a bank drive-up line during each 15-minute period was recorded. The results are shown below. Find the median number of vehicles going through the line in a fifteen-minute period. 25 27 25 2828 25 30 2735 31 31 2924 31 25 2015 27 27 27

  What is the probability that an event is certain to occur?

Body temperatures of patients with the flu.

Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data.  18  18  18  9  15  5  10  5  15