[8] 3. The probability of Christine getting a new job or going on vacation (or both) is .85. If the probability of Christine going on vacation is .10 and the probability of Christine getting a new job is .75, are the events “Christine gets a new job" and “Christine goes on vacation" mutually exclusive? Justify your answer. 4. The probability that Isabelle will go trick-or-treating is .4. The probability that she will go trick-or-treating or watch a scary movie is .65. The probability of Isabelle going trick-or-treating and watching a scary movie is .20. [9] a. What is the probability that Isabelle will not watch a scary movie? [4] b. What is the probability that Isabelle will watch a scary movie but does not go trick-or-treating? 5. Let the universal set U = {a, b, red, blue, tan, green, 1, 2, 4, 6} and let subsets A= (a, b, 1, 2, 4, red, tan}, B = {x|x is a color} and C= {red, blue, green, 1, 2 }. Find the following sets: [3] a. A° [3] b. Вос [3] c. AnC [3] d. Ø U U°

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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[8] 3. The probability of Christine getting a new job or going on vacation (or both) is .85. If the probability of Christine going
on vacation is .10 and the probability of Christine getting a new job is .75, are the events "Christine gets a new job"
and "Christine goes on vacation" mutually exclusive? Justify your answer.
4. The probability that Isabelle will go trick-or-treating is .4. The probability that she will go trick-or-treating or watch a
scary movie is .65. The probability of Isabelle going trick-or-treating and watching a scary movie is .20.
[9] a. What is the probability that Isabelle will not watch a scary movie?
[4] b. What is the probability that Isabelle will watch a scary movie but does not go trick-or-treating?
5. Let the universal set U =
{a, b, red, blue, tan, green, 1, 2, 4, 6} and let subsets A= (a, b, 1, 2, 4, red, tan}, B = {x|x is a color},
and C= {red, blue, green, 1, 2 }. Find the following sets:
[3] a. A°
[3] b. Вос
[3] c. AnC
[3] d. Ø U U°
Transcribed Image Text:[8] 3. The probability of Christine getting a new job or going on vacation (or both) is .85. If the probability of Christine going on vacation is .10 and the probability of Christine getting a new job is .75, are the events "Christine gets a new job" and "Christine goes on vacation" mutually exclusive? Justify your answer. 4. The probability that Isabelle will go trick-or-treating is .4. The probability that she will go trick-or-treating or watch a scary movie is .65. The probability of Isabelle going trick-or-treating and watching a scary movie is .20. [9] a. What is the probability that Isabelle will not watch a scary movie? [4] b. What is the probability that Isabelle will watch a scary movie but does not go trick-or-treating? 5. Let the universal set U = {a, b, red, blue, tan, green, 1, 2, 4, 6} and let subsets A= (a, b, 1, 2, 4, red, tan}, B = {x|x is a color}, and C= {red, blue, green, 1, 2 }. Find the following sets: [3] a. A° [3] b. Вос [3] c. AnC [3] d. Ø U U°
6. Let U denote the set of Fall Centerpieces in Cathy's Country Shop and let:
F = The set of centerpieces that contain flowers.
G= The set of centerpieces that contain fall gourds.
C = The set of centerpieces that contain candles.
a. Using set notation (union, intersection, complement, etc.), write each subset of Cathy's centerpieces in terms of F, G, and C.
[3] i. The set of centerpieces that contain flowers or candles (or both).
[3] ii. The set of centerpieces that contain fall gourds and candles.
[4] iii. The set of centerpieces that do not contain all three of these items.
[4]] iv. The set of centerpieces that contain candles and fall gourds but not flowers
[3] b. Describe the set C°nG° in words (in terms of what the sets and symbols mean).
7. Trudy has 180 Trick-or-Treat goody bags in her shop. 120 of her bags contain candy, 95 of her bags contain a
small toy, and 45 of her bags contain both candy and a small toy.
[4] a. How many of her treat bags do not contain both candy and a small toy?
[4] b. How many of her bags contain candy but do not contain a small toy?
[4] c. How many of her bags contain a small toy or candy or both?
Transcribed Image Text:6. Let U denote the set of Fall Centerpieces in Cathy's Country Shop and let: F = The set of centerpieces that contain flowers. G= The set of centerpieces that contain fall gourds. C = The set of centerpieces that contain candles. a. Using set notation (union, intersection, complement, etc.), write each subset of Cathy's centerpieces in terms of F, G, and C. [3] i. The set of centerpieces that contain flowers or candles (or both). [3] ii. The set of centerpieces that contain fall gourds and candles. [4] iii. The set of centerpieces that do not contain all three of these items. [4]] iv. The set of centerpieces that contain candles and fall gourds but not flowers [3] b. Describe the set C°nG° in words (in terms of what the sets and symbols mean). 7. Trudy has 180 Trick-or-Treat goody bags in her shop. 120 of her bags contain candy, 95 of her bags contain a small toy, and 45 of her bags contain both candy and a small toy. [4] a. How many of her treat bags do not contain both candy and a small toy? [4] b. How many of her bags contain candy but do not contain a small toy? [4] c. How many of her bags contain a small toy or candy or both?
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