In Brownsville, Texas, it is 88 degrees Fahrenheit. The temperature is expected to drop 1.5 degrees each hour. In Mesquite, Texas it is 94
degrees Fahrenheit and the temperature is expected to drop 2 degrees
each hour. In how many hours will the temperature in Mesquite be
greater than the temperature in Brownsville.

Need 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.

Two consecutive negative integers have a product of 30. what are the integers?

Random variables x poisson~ ( a) ,y poisson ~ ( a) . x and y are independent. if 2 1, 2 1. u =2x+ y-1, v=2x- y +1. find: ) cov (u ,v ).