7,4,9,8,4,4,6,6 mean, mode, median, and range

Write a real-world solution that can be represented by the equation y = 7x be sure to explain what the variables represented in the solution

Given abcd ac=38 and ae=3x+4 find the value of x

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4