Mathematics, 04.07.2020 02:01 busra09
Psychologist Michael Cunningham conducted a survey of university women to see whether, upon graduation, they would prefer to marry a high school teacher who has short workdays, summers off, and spare energy to help raise children, or a surgeon who earns eight times as much but works brutal hours. He found that 75% of the university women said they would choose the teacher. [Source: Alex Williams, "Putting Money on the Table, " The New York Times, September 23, 2007.] Select the appropriate distribution in the Distributions tool to help answer the questions that follow. Nate is single and completing the last year of his surgical residency at Brown Medical School. He decides that it's time to get married and embarks on a mission to find his soul mate. His strategy is to select 25 female university graduates randomly and take each prospect on a date sometime during the next 2 months. Let X denote the number of Nate's dates who prefer surgeons.
A. The probability that exactly six of Nate's dates are women who prefer surgeons is .
B. The probability that at least 10 of Nate's dates are women who prefer surgeons is .
C. The expected value of X is __, and the standard deviation of X is .
Answers: 1
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Mathematics, 21.06.2019 19:30
Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
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Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next
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Mathematics, 22.06.2019 00:00
What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°
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Psychologist Michael Cunningham conducted a survey of university women to see whether, upon graduati...
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