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Content: Charles A. Dana Center at The University of Texas at Austin © SECTION 2-3 Modified Student Worksheets: Matthew M. Winking at Phoenix High School Sec 2.3 -Probability Conditional Probability & Exclusive Events Name: CONDITIONAL PROBABILITY 1. Determine the following conditional probabilities. Consider a bag with marbles, 3 blue marbles, 2 red marbles, and 5 green marbles. Three marbles are drawn in sequence and are taken without replacement. i. P(2 nd draw: blue | 1st draw: red) = ii. P(2 nd draw: blue | 1st draw: blue) = iii. P(3 rd draw: blue | 1st draw: red, 2 nd draw: blue) = ii. P(1 st draw: blue | 1st draw: red) = 2. Determine the following conditional probabilities. Consider drawing 1 card from a standard deck of shuffled cards: i. P( Queen | Face Card ) = ii. P( Heart with a Number | Red Card) = iii. P( Card with a Letter| King) = iv. P(number less than 6 | Face Card) = v. P( Black Jack | Face Card) = 3. Consider the following table with information about all of the students taking Statistics at Phoenix High School. A. P( Full-time | Male) = B. P( Male | Full-time) = C. P( Female | Part-time) = D. P( Full-time | Part-time) = Determine whether each of the following are Mutually Exclusive or Inclusive and then determine the probability. 4. What is the probability of rolling a standard number cube to a number that is even or greater than 4? 5. What is the probability of rolling two dice and having getting a sum of 4 OR getting a sum greater than 10? 6. Reduced Fraction: Reduced Fraction: Reduced Fraction: Reduced Fraction: Reduced Fraction: Full-time Part-Time Total Female 28 15 43 Male 12 16 28 Total 40 31 71 Reduced Fraction: Reduced Fraction: Reduced Fraction: Reduced Fraction: Mutually Exclusive Inclusive Circle one of the following: Mutually Exclusive Inclusive Circle one of the following: Reduced Fraction: Reduced Fraction: Reduced Fraction: Reduced Fraction: Reduced Fraction: Reduced Fraction: p.20

# Sec 2.3 -Probability Conditional Probability & Exclusive ......Sec 2.3 -Probability Conditional Probability & Exclusive Events Name: CONDITIONAL PROBABILITY 1. Determine the following

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• Content: Charles A. Dana Center at The University of Texas at Austin © SECTION 2-3 Modified Student Worksheets: Matthew M. Winking at Phoenix High School

Sec 2.3 -Probability Conditional Probability & Exclusive Events Name:

CONDITIONAL PROBABILITY 1. Determine the following conditional probabilities.

Consider a bag with marbles, 3 blue marbles, 2 red marbles, and 5 green marbles. Three marbles are drawn in sequence and are taken without replacement. i. P(2nd draw: blue | 1st draw: red) = ii. P(2nd draw: blue | 1st draw: blue) =

iii. P(3rd draw: blue | 1st draw: red, 2nd draw: blue) = ii. P(1st draw: blue | 1st draw: red) =

2. Determine the following conditional probabilities.

Consider drawing 1 card from a standard deck of shuffled cards:

i. P( Queen | Face Card ) =

ii. P( Heart with a Number | Red Card) = iii. P( Card with a Letter| King) =

iv. P(number less than 6 | Face Card) = v. P( Black Jack | Face Card) =

3. Consider the following table with information about all of the students taking Statistics at Phoenix High School.

A. P( Full-time | Male) =

B. P( Male | Full-time) =

C. P( Female | Part-time) =

D. P( Full-time | Part-time) =

Determine whether each of the following are Mutually Exclusive or Inclusive and then determine the probability. 4. What is the probability of rolling a standard number cube to a

number that is even or greater than 4?

5. What is the probability of rolling two dice and having getting a sum

of 4 OR getting a sum greater than 10? 6.

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Full-time Part-Time Total Female 28 15 43 Male 12 16 28 Total 40 31 71

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Mutually Exclusive Inclusive

Circle one of the following:

Mutually Exclusive Inclusive

Circle one of the following:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

p.20

• Content: Charles A. Dana Center at The University of Texas at Austin © SECTION 2-3 Modified Student Worksheets: Matthew M. Winking at Phoenix High School

7. What is the probability of randomly selecting a card from a standard 52 card deck and having the card be a red card or a face card?

8. What is the probability of randomly selecting a card from a standard 52 card deck and having the card be a face card or an odd numbered card?

9. The following shows a VENN diagram with the results of a survey a teacher gave to all of her students. It represents where all of the students have gone to eat over the last month. What is the probability of the following? i. What is the probability of randomly selecting a person from this group

and picking a student that has NOT eaten at any of the restaurants OR they ate at McDonald’s?

ii. What is the probability of randomly selecting a person from this group and picking a student that has eaten at Mc Donald’s OR Chick-fil-a?

Mutually Exclusive Inclusive

Circle one of the following:

Mutually Exclusive Inclusive

Circle one of the following:

Mutually Exclusive Inclusive

Circle one of the following:

Mutually Exclusive Inclusive

Circle one of the following:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

Reduced Fraction:

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