Question

Three people are selected at random.20 (a) What is the probability that the first person is...

Three people are selected at random.20 (a) What is the probability that the first person is male and right-handed? (b) What is the probability that the first two people are male and right-handed?. (c) What is the probability that the third person is female and left-handed? (d) What is the probability that the first two people are male and right-handed and the third person is female and left-handed? Sometimes we wonder if one outcome provides useful information about another outcome. The question we are asking is, are the occurrences of the two events independent? We say that two events A and B are independent if they satisfy P(A and B) = P(A) × P(B).

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Assume that 13% of people are left-handed. If we select 5 people at random, find the...
Assume that 13% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below. a) The first lefty is the fifth person chosen. b) There are some lefties among the 5 people. c) The first lefty is the second or third person. d) There are exactly 3 lefties in the group. e) There are at least 3 lefties in the group. f) There are no more than 3 lefties in the group.
Assume that 13% of people are left handed. If we select 5 people at random, find...
Assume that 13% of people are left handed. If we select 5 people at random, find the probability below: a) the first lefty is the fifth person chosen = .0745 b) the first lefty is the second or third person = .211 How do you solve both problems in R?
a. In rolling 3 fair dice, what is the probability of obtaining a sum not greater...
a. In rolling 3 fair dice, what is the probability of obtaining a sum not greater than 16? b. In rolling 2 fair dice, what is the probability of a sum greater than 3 but not exceeding 6? c. If a box contains 10 left-handed and 20 right-handed screws, what is the probability of obtaining at least one right-handed screw in drawing 2 screws with replacement? d. Will the probability in Prob. 5 increase or decrease if we draw without...
2) Assume that 13% of people are left-handed. If we select 5 people at random, find...
2) Assume that 13% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below. a. The first lefty is the fifth person chosen. b. There are some lefties among the 5 people. c. There are exactly 3 lefties in the group d. There are at least 3 lefties in the group e. There are no more than 3 lefties in the group f. How many lefties do you expect? g. With...
The table below shows the results of a survey that asked 28682868 people whether they are...
The table below shows the results of a survey that asked 28682868 people whether they are involved in any type of charity work. A person is selected at random from the sample. Complete parts​ (a) through​ (d). Frequently    Occasionally Not at all Total Male 228 458 794 1480 Female 202 440 746 1388 Total 430 898 1540 2868 ​(a) Find the probability that the person is frequently or occasionally involved in charity work. Upper P left parenthesis being frequently involved...
Volunteers were asked to fill out a survey about body piercings and tattoos. The probability that...
Volunteers were asked to fill out a survey about body piercings and tattoos. The probability that a person has a tattoo is 0.3. For this problem, we can assume that the volunteers are independent. a) What is the probability that three people will have a tattoo out of 10 volunteers surveyed? b) How many volunteers out of 10 can we expect to have a tattoo? c) What is the probability that it will take asking at least 3 volunteers to...
Example:5 Following table shows a random sample of 100 hikers and the areas of hiking they...
Example:5 Following table shows a random sample of 100 hikers and the areas of hiking they prefer. Sex       The Coastline      Near Lakes and Streams      On Mountain Peaks        Total Female   18                                    16                                           11                                45 Male       16                                    25                                           14                                55 Total       34                                    41                                           25                               100 a. Are the events "being female" and "preferring the coastline" independent events? Let F = being female and let C = preferring the coastline. 1. Find P(F ∩ C) =……………….. 2. Find P(F)P(C)=…………………… Are these two numbers...
Assume that 42% of people are left-handed. If we select 5 people at random, find the...
Assume that 42% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below, rounded to four decimal places: a. There are some lefties (≥ 1) among the 5 people. b. There are exactly 3 lefties in the group. c. There are at least 4 lefties in the group. d. There are no more than 2 lefties in the group. e. How many lefties do you expect? f. With what standard deviation?
Assume that 61% of people are left-handed. If we select 5 people at random, find the...
Assume that 61% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below, rounded to four decimal places: a. There are some lefties (≥ 1) among the 5 people. b. There are exactly 3 lefties in the group. c. There are at least 4 lefties in the group. d. There are no more than 2 lefties in the group. e. How many lefties do you expect? f. With what standard deviation?
Assume that 12% of people are left-handed. If we select 5 people at random, find the...
Assume that 12% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below, rounded to four decimal places: a. There are some lefties (≥ 1) among the 5 people. b. There are exactly 3 lefties in the group. c. There are at least 4 lefties in the group. d. There are no more than 2 lefties in the group. e. How many lefties do you expect? f. With what standard deviation?