Intro Stats, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780134210285
Author: Richard D. De Veaux, Paul Velleman, David E. Bock
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 62E
Birth order, take 2 Look again at the data about birth order of Intro Stats students and their choices of colleges shown in Exercise 58.
- a) If we select a student at random, what’s the
probability the person is an Arts and Sciences student who is a second child (or more)? - b) Among the Arts and Sciences students, what’s the probability a student was a second child (or more)?
- c) Among second children (or more), what’s the probability the student is enrolled in Arts and Sciences?
- d) What’s the probability that a first or only child is enrolled in the Agriculture College?
- e) What is the probability that an Agriculture student is a first or only child?
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Section 2.2 Subsets
71
Exercise Set 2.2
Practice Exercises
In Exercises 1-18, write or in each blank so that the resulting
statement is true.
1. {1, 2, 5}
{1, 2, 3, 4, 5, 6, 7}
2. {2, 3, 7}
{1, 2, 3, 4, 5, 6, 7}
3. {-3, 0, 3}
{-4,-3,-1, 1, 3, 4}
4. {-4, 0, 4}
5. {Monday, Friday}
{-3, -1, 1, 3}
{Saturday, Sunday, Monday, Tuesday, Wednesday}
6. {Mercury, Venus, Earth}
{Venus, Earth, Mars, Jupiter}
7. {x/x is a cat}
{xx is a black cat}
{x|x is a pure-bred dog}
ibrary
mbers,
ause the
entire
sual
8. {xx is a dog}
9. (c, o, n, v, e, r, s, a, t, i, o, n}
{v, o, i, c, e, s, r, a, n, t, o, n}
10. [r, e, v, o, l, u, t, i, o, n}
{t, o, l, o, v, e, r, u, i, n}
33. A = {x|x E N
and
5 < x < 12}
B
=
{x|x E N
and
2 ≤ x ≤ 11}
A_ B
34. A =
{x|x = N
and
3 < x < 10}
B =
A.
{x|x = N
and
2 ≤ x ≤ 8}
B
35. Ø
{7, 8, 9,..., 100}
36. Ø
_{101, 102, 103, . . ., 200}
37. [7, 8, 9,...}
38. [101, 102, 103, ...}
39. Ø
40. { }
{ }
e
In Exercises 41-54, determine whether each statement is true or
false. If…
Chapter 12 Solutions
Intro Stats, Books a la Carte Edition (5th Edition)
Ch. 12.1 - One common proposal for beating the lottery is to...Ch. 12.3 - We sampled some pages of this book at random to...Ch. 12.3 - Prob. 3JCCh. 12.5 - Prob. 4JCCh. 12.6 - Prob. 5JCCh. 12 - Flipping a coin Flipping a fair coin is said to...Ch. 12 - Dice Rolling a fair six-sided die is supposed to...Ch. 12 - Flipping a coin II Your friend says: I flipped...Ch. 12 - Dice II After rolling doubles on a pair of dice...Ch. 12 - Wardrobe In your dresser are five blue shirts,...
Ch. 12 - Prob. 6ECh. 12 - Cell phones and surveys A 2015 study conducted by...Ch. 12 - Cell phones and surveys II The survey by the...Ch. 12 - Pet ownership Suppose that 25% of people have a...Ch. 12 - Cooking and shopping Forty-five percent of...Ch. 12 - Sports What is the probability that a person likes...Ch. 12 - Sports again From Exercise 11, if someone doesnt...Ch. 12 - Late to the train A student figures that he has a...Ch. 12 - Field goals A nervous kicker usually makes 70% of...Ch. 12 - Titanic On the Titanic, the probability of...Ch. 12 - Prob. 16ECh. 12 - Facebook Facebook reports that 70% of its users...Ch. 12 - Prob. 18ECh. 12 - Prob. 19ECh. 12 - Prob. 20ECh. 12 - Prob. 21ECh. 12 - Online banking last time Given the probabilities...Ch. 12 - Sample spaces For each of the following, list the...Ch. 12 - Sample spaces II For each of the following, list...Ch. 12 - Prob. 25ECh. 12 - Rain The weather reporter on TV makes predictions...Ch. 12 - Winter Comment on the following quotation: What I...Ch. 12 - Snow After an unusually dry autumn, a radio...Ch. 12 - Auto insurance Insurance companies collect annual...Ch. 12 - Prob. 30ECh. 12 - Prob. 31ECh. 12 - Prob. 32ECh. 12 - Electronics Suppose that 46% of families living in...Ch. 12 - Homes Funding for many schools comes from taxes...Ch. 12 - Prob. 35ECh. 12 - Lefties Although its hard to be definitive in...Ch. 12 - Prob. 37ECh. 12 - Prob. 38ECh. 12 - Car repairs A consumer organization estimates that...Ch. 12 - Stats projects In a large Introductory statistics...Ch. 12 - More repairs Consider again the auto repair rates...Ch. 12 - Another project You are assigned to be part of a...Ch. 12 - Prob. 43ECh. 12 - Final project You used the Multiplication Rule to...Ch. 12 - Prob. 45ECh. 12 - Polling, part II According to Pew Research, the...Ch. 12 - Prob. 47ECh. 12 - Blood The American Red Cross says that about 45%...Ch. 12 - Prob. 49ECh. 12 - Disjoint or independent? In Exercise 48, you...Ch. 12 - Prob. 51ECh. 12 - The train To get to work, a commuter must cross...Ch. 12 - Prob. 53ECh. 12 - Pepsi For a sales promotion, the manufacturer...Ch. 12 - 9/11? On September 11, 2002, the first anniversary...Ch. 12 - Prob. 56ECh. 12 - Prob. 57ECh. 12 - Prob. 58ECh. 12 - Health The probabilities that an adult American...Ch. 12 - Immigration The table shows the political...Ch. 12 - Prob. 61ECh. 12 - Birth order, take 2 Look again at the data about...Ch. 12 - Batteries A junk box in your room contains a dozen...Ch. 12 - Prob. 64ECh. 12 - Eligibility A university requires its biology...Ch. 12 - Benefits Fifty-six percent of all American workers...Ch. 12 - Unsafe food Early in 2010, Consumer Reports...Ch. 12 - Prob. 68ECh. 12 - Prob. 69ECh. 12 - Politics Given the table of probabilities from...Ch. 12 - Gender A poll conducted by Gallup classified...Ch. 12 - Cars A random survey of autos parked in student...Ch. 12 - Prob. 73ECh. 12 - Prob. 74ECh. 12 - Late luggage Remember Leah (Exercise 73)? Suppose...Ch. 12 - Prob. 76ECh. 12 - Prob. 77ECh. 12 - Prob. 78ECh. 12 - Prob. 79ECh. 12 - Prob. 80ECh. 12 - Drunks Police often set up sobriety...Ch. 12 - No-shows An airline offers discounted...Ch. 12 - Prob. 83ECh. 12 - Parts A company manufacturing electronic...Ch. 12 - HIV testing In July 2005, the journal Annals of...Ch. 12 - Polygraphs Lie detectors are controversial...
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