# I need help with my assignment

Assignment

• Question 1
1. How is a weighted mean different than a mean? Compute the weighted mean and the non-weighted mean for the following data. What percentage would the student be earning in the class in each case?

Category Weighting AverageQuizzes 10% 100%Tests 60% 77%Homework 30% 60%
Question 2

1. What does P(A) mean? Make sure you use the symbols area of the course to assist.
2. What does P (A u B) mean?
3. What is the definition of conditional probability?
4. If P(A) = 0.50, P(B) = 0.40, and P(A ∪ B) = 0.88, then P(B | A) =
5. What formulas from the textbook were needed to solve #4? Make sure you have shown work to earn credit.

Question 3Make sure you show the fractions you used to compute the answers.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

1. Person A was given a vitamin tablet?
2. Person B was given a sugar tablet given that Person A was given a vitamin tablet?
3. neither was given vitamin tablets?
4. both were given vitamin tablets?
5. Person A was given a sugar tablet and Person B was given a vitamin tablet?
6. Person A was given a vitamin tablet and Person B was given a sugar tablet?
7. exactly one person was given a vitamin tablet?
8. How are 5-7 related?

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