+0  
 
0
93
1
avatar

The ages of people entering a pie eating contest are normally distributed with a mean of 35 years and a standard deviation of 8.2 years.

What is the age of a pie eating contestant with a z-score of  -2.1

Round to the nearest tenth.

 May 11, 2020
 #1
avatar+26945 
+1

z = - 2.1 means 2.1 standard deviations below the mean

    2.1   x   8.2 = 17.77 years below the mean

35 - 17.22 = 17.78 =  ~~ 17.8 y/o

 May 11, 2020

35 Online Users

avatar
avatar
avatar