SOLUTION: Suppose that in a group of people you find that X percent of people in the group have heights that are greater than the average (that is, the mean) height in that group. Which of t

Algebra ->  Probability-and-statistics -> SOLUTION: Suppose that in a group of people you find that X percent of people in the group have heights that are greater than the average (that is, the mean) height in that group. Which of t      Log On


   

Question 869451: Suppose that in a group of people you find that X percent of people in the group have heights that are greater than the average (that is, the mean) height in that group. Which of the following is a true statement about X?
a) X can be any percentage but less than 100%.
b) X can be any percentage as long as it is less than 50%.
c) X cannot be bigger than 25%.
d) X can be bigger than 25% but cannot be bigger than 50%.
e) X can be bigger than 50% but cannot be as high as 99.9%.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Below:  z = 0, z = ± 1, z= ±2 , z= ±3 are plotted.  

Note: z = 0 (x value the mean) 50% of the area under the curve is to the left 

and %50 to the right



Suppose that in a group of people you find that X percent of people in the group have 

heights that are greater than the average (that is, the mean) height in that group.

b) X can be any percentage as long as it is less than 50%.