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.