Arandom sample of size 25 is taken from a nor- mal population having a mean of 80 and a standard deviation of 5. a second random sample of size 36 is taken from a different normal population having a mean of 75 and a standard deviation of 3. find the probability that the sample mean computed from the 25 measurements will exceed the sample mean com- puted from the 36 measurements by at least 3.4 but less than 5.9. assume the difference of the means to be measured to the nearest tenth.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

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.

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?