1. On this problem, give exact answers using both fractions and exact decimals. One card is chosen from a set of cards that have ranks 1 to 6. Let X be the number on the card chosen. The distribution function for picking the cards is given as follows: m(1) = 6/100, m(2) = 33/100, m(3) = 11/100, m(4) = 37/100, m(5) = 8/100, m(6) = 5/100. Let E be the event "A card with an odd numbered rank is drawn," and F be the event "A card whose rank is less than or equal to 3 is drawn." (a) Compute P(E). (b) Compute P(F). (c) Before you compute P(Eʼn F), explain (in whole sentences) whether or not it is safe to use the formula P(E^ F) = P(E) · P(F) before knowing the answer to part (g). (d) Compute P(EΜF). (e) Compute P(F|E). (f) Compute P(E|F). (g) Based on some of your answers to parts (a), (b), (e), and (f), explain (in whole sentences) whether events E and F are independent or not. In your response, please write down which probabilities you are comparing, whether they are equal or not, and how their equality or difference shows that the events E and F are independent or not.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 55SE: Use the following scenario for the exercises that follow: In the game of Keno, a player starts by...
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1. On this problem, give exact answers using both fractions and exact decimals.
One card is chosen from a set of cards that have ranks 1 to 6. Let X be the number
on the card chosen. The distribution function for picking the cards is given as follows:
m(1) = 6/100, m(2) = 33/100, m(3) = 11/100,
m(4) = 37/100, m(5) = 8/100, m(6) = 5/100.
Let E be the event "A card with an odd numbered rank is drawn," and
F be the event "A card whose rank is less than or equal to 3 is drawn."
(a) Compute P(E).
(b) Compute P(F).
(c) Before you compute P(Eʼn F), explain (in whole sentences) whether or not it is
safe to use the formula P(E^ F) = P(E) · P(F) before knowing the answer to
part (g).
(d) Compute P(EΜF).
(e) Compute P(F|E).
(f) Compute P(E|F).
(g) Based on some of your answers to parts (a), (b), (e), and (f), explain (in whole
sentences) whether events E and F are independent or not. In your response,
please write down which probabilities you are comparing, whether they are equal
or not, and how their equality or difference shows that the events E and F are
independent or not.
Transcribed Image Text:1. On this problem, give exact answers using both fractions and exact decimals. One card is chosen from a set of cards that have ranks 1 to 6. Let X be the number on the card chosen. The distribution function for picking the cards is given as follows: m(1) = 6/100, m(2) = 33/100, m(3) = 11/100, m(4) = 37/100, m(5) = 8/100, m(6) = 5/100. Let E be the event "A card with an odd numbered rank is drawn," and F be the event "A card whose rank is less than or equal to 3 is drawn." (a) Compute P(E). (b) Compute P(F). (c) Before you compute P(Eʼn F), explain (in whole sentences) whether or not it is safe to use the formula P(E^ F) = P(E) · P(F) before knowing the answer to part (g). (d) Compute P(EΜF). (e) Compute P(F|E). (f) Compute P(E|F). (g) Based on some of your answers to parts (a), (b), (e), and (f), explain (in whole sentences) whether events E and F are independent or not. In your response, please write down which probabilities you are comparing, whether they are equal or not, and how their equality or difference shows that the events E and F are independent or not.
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