Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. would it be unusual for the mean of a sample of 3 to be 115 or more? why or why not?

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

Line wx is parallel to line yz. if m