The heights (in cm) for a random sample of 60 males were measured. The sample mean is 166.55, the standard deviation is 12.57, the sample kurtosis is 0.12, and the sample skewness is −0.23. The following table shows the heights subdivided into non-overlapping intervals. For the heights subdivided into five intervals, the expected frequency of males that weigh less than 150 is ________.
A) 5.4
B) 12.6
C) 18.6
D) 8.4

Question

The heights (in cm) for a random sample of 60 males were measured. The sample mean is 166.55, the standard deviation is 12.57, the sample kurtosis is 0.12, and the sample skewness is −0.23. The following table shows the heights subdivided into non-overlapping intervals.  For the heights subdivided into five intervals, the expected frequency of males that weigh less than 150 is ________.
A) 5.4 
B) 12.6 
C) 18.6 
D) 8.4

Quizplus · Accepted Answer

The Answer of The heights (in cm) for a random sample of 60 males were measured. The sample mean is 166.55, the standard deviation is 12.57, the sample kurtosis is 0.12, and the sample skewness is −0.23. The following table shows the heights subdivided into non-overlapping intervals.  For the heights subdivided into five intervals, the expected frequency of males that weigh less than 150 is ________.
A) 5.4 
B) 12.6 
C) 18.6 
D) 8.4

The Heights (In Cm) for a Random Sample of 60