Homework Assignment Regarding Probability Addition Rule
The following table summarizes results from a study of people who refused to answer survey questions.
Age Group |
18-21 |
22-29 |
30-39 |
40-49 |
50-59 |
60 and over |
Responded |
73 |
255 |
245 |
136 |
138 |
202 |
Refused |
11 |
20 |
33 |
16 |
27 |
49 |
given that
Age group | 18-21 | 22-29 | 30-39 | 40-49 | 50-59 | 60 and over | total |
Responded | 73 | 255 | 245 | 136 | 138 | 202 | 1049 |
Refused | 11 | 20 | 33 | 16 | 27 | 49 | 156 |
Total | 84 | 275 | 278 | 152 | 165 | 251 | 1205 |
let R is event that person refused to respond
A is event that person responded
1)
now
2)
3)
4)
Homework Assignment Regarding Probability Addition Rule The following table summarizes results from a study of people...
Survey Refusals from study of pear Hear You Knock Methods and Rese randomly selected. Gugals. In Exercises 27-32, refer to the following table summarizing results Ju of people who refused to answer survey questions (based on data from Knocking but You Can't Come In," by Fitzgerald and Fuller, Sociological and Research, Vol. 11, No. 1). In each case, assume that one of the subjects is 18-21 22-29 30-39 245 Age 40-49 136 16 60 and over 202 73 255 50-59...
12. Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 92 people in the 18-21 age bracket and finds that 47 of them respond and 45 refuse to respond. When 261 people in the 22-29 age bracket are contacted, 213 respond and 48 refuse to respond. Suppose that one of the 353 people is randomly selected. Find the probability of getting someone in the 18 dash 21 age bracket or someone who responded....
The table below summarizes results from a study of people who refused to answer survey questions. A market researcher is not interested in refusals or subjects below 22 years of age or over 59. Find the probability that the selected person refused to answer or is below 22 or is older than 59. The probability that a randomly selected person refused to answer the survey question or is below 22 or is older than 59 is _______ (Do not round until...
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28. A study of consumer smoking habits includes 186 people in the 18-22 age bracket (42 of whom smoke), 124 people in the 23-30 age bracket (40 of whom smoke), and 99 people in the 31-40 age bracket (21 of whom smoke). b. If one person is randomly selected from this sample, find the probability of getting someone who is age 18-22 or is age 31-40.
A study of consumer smoking habits includes 155 people in the 18-22 age bracket (42 of whom smoke), 131 people in the 23-30 age bracket (34 of whom smoke), and 85 people in the 31-40 age bracket (28 of whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 18-22 or does not smoke. 0.833 0.729 0.305 1.137
(CO 3) Consider the table below Age Group Frequency 18-29 9831 30-39 7845 40-49 6869 50-59 6323 60-69 5410 70 and over 5279 What is the probability that the next person chosen will be in the 40-49 or 50-59 age groups? 42.5% 23.7% 35.4% 31.7% Question 22 2 pts (CO 3) When children roll a die for a game, their probability of rolling a 5 is 17%. This is an example of which type of probability? Classical probability Public probability...
16) The table below shows the soft drinks groups. preferences of people in three age cola root beer lemon-lime bet ween 21 and 40 35 20 over 40 years of age 20 30 30 35 If one of the 255 subjects is randomly selected, find the probability that age given that they do not drink root beer the person is over 40 years of A) 0.353 B) 0.306 C) 0.4 D) None of the above is correct 17) You are...
The following table displays the results of a random survey of 100 people. The people were asked what they preferred as a pet, a cat or a dog. Dog Cat Total Male 42 10 52 Female 9 39 48 Total 51 49 100 A person is selected at random from this group. What is the probability that the person prefers Cats given that they are Female?