A study on students drinking habits wants to determine the true average number of alcoholic drinks all UF underclassmen students have in a one week period. We know from preliminary studies that the standard deviation is around 2.8. How many students should be sampled to be within 1.5 drink of population mean with 90% probability

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Someone answer asap for ! 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.