(b) As a pedagogical exercise, find the correlation, r, step by step. You may wish to round off to two decimal places in each step. First, obtain the mean and standard deviation of each variable. Second, compute the four standardized values
for each variable. Finally, use the formula for r. Use your calculator or software to obtain and check that you get the
same result as in your hand calculations, up to roundoff error (linter your answer rounded to two decimal places),

Which expression will have the same sum as 3_8 + 1/4?

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.

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2