# Business Statistics “Descriptive Statistics and Probability” question 1-3

**Question description**

# Week 2 Assignment

Question 1

- Compute the weighted mean for the following data.

[img width="223" height="151" src="https://content.grantham.edu/at/BA215/2015/wk-2-assignment-image-1.png">

- If P(A) = 0.50, P(B) = 0.40, and P(A ∪ B) = 0.88, then P(B | A) =

Question 3

Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at random and given to Person A. A tablet is then selected and given to Person B. What is the probability that

- Person A was given a vitamin tablet?
- Person B was given a sugar tablet given that Person A was given a vitamin tablet?
- neither was given vitamin tablets?
- both were given vitamin tablets?
- exactly one person was given a vitamin tablet?
- Person A was given a sugar tablet and Person B was given a vitamin tablet?
- Person A was given a vitamin tablet and Person B was given a sugar tablet?

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