Question

Make a study about how many sheets of paper you consumed weekly in 

answering your Self Learning Modules. Record the quantity (total number of 

sheets) per subject, then construct a probability distribution. Compute the 

mean, variance, and the standard deviation of the probability distribution you 

made. Interpret the result, then find out how many weeks you will consume 

50 sheets of pad paper.

Answer 1

The probability distribution is given as-

Mean=$\sum X.P(X)=10.8$

Variance=$E(X^2)-[(E(X)]^2=124-116.64=7.36$

Standard deviation =$\sqrt{variance}=\sqrt{7.36}=2.71$

As the overall consumption of sheets taken above from the table in all the subjects is 50 per week

Therefore

Number of weeks in which we consumed 50 sheets of pad paper is 1.