Question
1A. The following table shows the results of a survey of 500 authors by a publishing...
1A. The following table shows the results of a survey of 500 authors by a publishing company.
| New Authors | Established Authors | Total | |
|---|---|---|---|
| Successful | 25 | 140 | 165 |
| Unsuccessful | 85 | 250 | 335 |
| Total | 110 | 390 | 500 |
Compute the relative frequency of the given event if an author as specified is chosen at random.
An author is established____
1B.The following table shows the results of a survey of 100 authors by a publishing company.
| New Authors | Established Authors | Total | |
|---|---|---|---|
| Successful | 8 | 27 | 35 |
| Unsuccessful | 17 | 48 | 65 |
| Total | 25 | 75 | 100 |
Compute the relative frequency of the given event if an author as specified is chosen at random.
A successful author is established_________.
1C.The following table shows the results of a survey of 500 authors by a publishing company.
| New Authors | Established Authors | Total | |
|---|---|---|---|
| Successful | 20 | 130 | 150 |
| Unsuccessful | 95 | 255 | 350 |
| Total | 115 | 385 | 500 |
Compute the relative frequency of the given event if an author as specified is chosen at random.
A new author is unsuccessful________.
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
The following table shows the results of a survey of 400 authors by a publishing company....
The following table shows the results of a survey of 400 authors
by a publishing company.
New
Authors
Established
Authors
Total
Successful
20
96
116
Unsuccessful
80
204
284
Total
100
300
400
Compute the relative frequency of the given event if an author
as specified is chosen at random.
A successful author is established.______________-
2.) The following table shows the results of a survey of 200
authors by a publishing company.
New
Authors
Established
Authors
Total
Successful
18
44...
13) The table shows the results of a survey of 100 authors by a publishing company....
13) The table shows the results of a survey of 100 authors by a
publishing company.
New
Authors
Established
Authors
Total
Successful
5
25
30
Unsuccessful
10
60
70
Total
15
85
100
Compute the following conditional probability.
An author is established, given that she is successful.
14) The following table shows the results of a survey of authors
by a (fictitious) publishing company. HINT [See Example 5.]
New
Authors
Established
Authors
Total
Successful
9
20
29
Unsuccessful
17...
The accompanying table shows the results of a survey in which 250 male and 250 female...
The accompanying table shows the results of a survey in which
250 male and 250 female workers ages 25 to 64 were asked if they
contribute to a retirement savings plan at work. Complete parts
(a) and (b) below.
b) Find the probability that a randomly selected worker is
female, given that the worker contributes to a retirement savings
plan at work.
The probability that a randomly selected worker is female,
given that the worker contributes to a retirement savings...
The contingency table below shows the results of a survey of video viewing habits by age...
The contingency table below shows the results of a survey of
video viewing habits by age
Age range Mobile/Laptop Device Tv Screen Row Total
18-34 33 25 58
35-54 13 13 26
55+ 5 11 16
Column Total 51 49 100
(a) Probability that a viewer is aged 18-34
(b) Probability that a viewer prefers watching videos on a TV
screen
(c) Percentage of viewers who are 18-34 and prefer videos...
Table 1 below shows results obtained in a new screening test for diabetes. 10,000 people were...
Table 1 below shows results obtained
in a new screening test for diabetes. 10,000 people were screened.
The cut-off level employed was 180mg of blood glucose per 100 ml.
Everyone scoring above this level was classified as positive for
diabetes. Everyone scoring below this level was classified as
negative for diabetes. These results were compared to a “gold
standard” test for diabetes that is considered to be completely
valid. Compute and interpret the sensitivity, specificity, positive
predictive value (PPV) and...
The following table shows the results of a survey in with 90 dog owners were asked...
The following table shows the results of a survey in with 90 dog
owners were asked how much they have spent in the last year for
their dog's health care and whether the dogs were purebred or mixed
breeds.
Purebred
mixed breed
total
less than $100
19
21
40
$100 or more
35
15
50
total
54
36
90
a.) find the probability that $100 or more was spent on a
randomly selected dog's health care in the last year__________...
The contingency table below shows the results of a survey of video viewing habits by age....
The contingency table below shows the results of a survey of
video viewing habits by age.
Video Viewing Platform Preferred
Viewer Age
Mobile/Laptop Device
TV Screen
Row Total
18–34
40
23
63
35–54
12
12
24
55+
5
8
13
Column Total
57
43
100
Find the following probabilities or percentages:
(a) Probability that a viewer is aged 18–34.
(Round your answer to 2 decimal places.)
Probability
(b) Probability that a viewer prefers watching videos on a
TV...
Exercise 1 The table below shows results from the New Mexico Behavioral Risk Factor Surveil- lance...
Exercise 1
The table below shows results from the New Mexico Behavioral
Risk Factor Surveil-
lance System (BRFSS), an annual survey conducted by telephone.
Data are shown
for the years 2011 and 2015. Each year represents a different
random sample. The
results below indicate the sample size and number of people who
reported that they
have been diagnosed with diabetes.
Diagnosed with diabetes
Year
yes
no
total
2011
1189
8135
9324
2015
908
5617
6525
Conduct a hypothesis test of...
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...
The following contingency table gives the results of a sample survey of South African male and...
The following contingency table gives the results of a sample
survey of South African male and female respondents with regard to
their preferred supermarket:
Preferred Supermarket
Pick a Pay
Checkers
Woolworths
Total
No of Females
70
60
125
255
No of Males
70
50
25
145
Total
140
110
150
400
a) What is the probability of randomly
selecting a male respondent from the sample? (2)
b) What is the probability of randomly
selecting a respondent who is female and...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 6 minutes ago
asked 7 minutes ago
asked 7 minutes ago
asked 10 minutes ago
asked 49 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago