Stati sti cs - Portage Online Summer 2018
Module 4 Problem Set 1-4 Answers
Problem Set 4.1 Solutions.
1. Solution.
The expected value is given by
So, the convenience store can expect to sell 8.48 boxes of sugar per week.
The variance is given by
The standard deviation is given by:
2. Solution.
The expected value is given by
So, the barber can expect 2.46 customers per hour.
The variance is given by
, Stati sti cs - Portage Online Summer 2018
The standard deviation is given by:
3. Solution.
The expected value is given by
So, we can expect 1.7 broken bulbs per box.
Problem Set 4.2 Solutions
1 . Solution.
Here we have n=9, x=7, and p=.75.
2. Solution.
Here we have n=13, x=4, and p=.211.
Module 4 Problem Set 1-4 Answers
Problem Set 4.1 Solutions.
1. Solution.
The expected value is given by
So, the convenience store can expect to sell 8.48 boxes of sugar per week.
The variance is given by
The standard deviation is given by:
2. Solution.
The expected value is given by
So, the barber can expect 2.46 customers per hour.
The variance is given by
, Stati sti cs - Portage Online Summer 2018
The standard deviation is given by:
3. Solution.
The expected value is given by
So, we can expect 1.7 broken bulbs per box.
Problem Set 4.2 Solutions
1 . Solution.
Here we have n=9, x=7, and p=.75.
2. Solution.
Here we have n=13, x=4, and p=.211.
