In responding to a survey question on a sensitive topic (such as "have you ever tried marijuana? "), many people prefer not to respond in the affirmative. suppose that 80% of the population have not tried marijuana and all of those individuals will truthfully answer no to your question. the remaining 20% of the population have tried marijuana and 70% of those individuals will lie. derive the probability distribution of y, the number of people you would need to question in order to obtain a single affirmative response.

Now 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.

What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4