Question
In: Statistics and Probability
if the probability that a person believes a rumor about the retirement of zidane is 0.25,...
if
the probability that a person believes a rumor about the retirement
of zidane is 0.25, what is the probability that:
a)the 6th person to hear the rumor will be the first one to
believe it?
b)the 12th person to hear the rumor will be the fourth to
believe it?
c)the 18th person to hear the rumor will be the sixth to
believe it?
once you have calculated these probabilities:
d)compute the expected value and variance for question
a)?
e)compute the expected value and variance for question
b)?
Solutions
orchestra answered 1 year agoRelated Solutions
The population proportion is 0.25. What is the probability that a sample proportion will be within...
The population proportion is 0.25. What is the probability that
a sample proportion will be within (plus or minus)+-0.05 of the
population proportion for each of the following sample sizes? Round
your answers to 4 decimal places. Use z-table.
a. n=100
b. n=200
c. n=500
d. n=1,000
e. What is the advantage of a larger sample size?
With a larger sample, there is a (lower/higher) probability will
be within (plus or minus) +-0.05 of the population proportion .
In any given year, an insurance company believes the following: -0.6 of drivers are safe. -0.25...
In any given year, an insurance company believes the
following:
-0.6 of drivers are safe.
-0.25 of safe drivers wear seatbelts
-0.10 of unsafe drivers wear seatbelts
-0.10 of safe drivers experience an accident in a year
-0.20 of unsafe drivers experience an accident in a year
-Given a driver experiences an accident, the driver has
probability 0.01 they will be taken to the hospital if they were
wearing a seatbelt
-Given a driver experiences an accident, the driver has...
A binomial probability distribution has p = 0.25 and n = 81. A) What are the...
A binomial probability distribution has p = 0.25 and n = 81.
A) What are the mean and standard deviation?
B) Is this situation one in which binomial probabilities can be
approximated by the normal probability distribution? Explain.
C) What is the probability of exactly 28 successes?
D) What is the probability of 18 to 22 successes?
E)What is the probability of 24 or fewer successes?
In a doctor's waiting room, the probability of a patient having a fever (F) is 0.25,...
In a doctor's waiting room, the probability of a patient
having a fever (F) is 0.25, the probability of a patient having
nausea (N) is 0.15, and the probability of a patient having both
conditions is 0.10 Answer these questions : (results to two decimal
places)
to. What is the probability that a patient is not
nauseated?
b. What is the probability that a patient does not have any of
the conditions?
c. What is the probability that a patient...
In a doctor's waiting room, the probability of a patient having a fever (F) is 0.25,...
In a doctor's waiting room, the probability of a patient having a fever (F) is 0.25, the probability of a patient having nausea (N) is 0.15, and the probability of a patient having both conditions is 0.10 Answer these questions : (results to two decimal places)
to. What is the probability that a patient is not nauseated?
b. What is the probability that a patient does not have any of the conditions?
c. What is the probability that a patient...
Business conditions Boom Good Normal Recession Poor Probability 0.05 0.25 0.40 0.25 0.05 Petronas share return...
Business conditions
Boom
Good
Normal
Recession
Poor
Probability
0.05
0.25
0.40
0.25
0.05
Petronas share return %
12
10
4
-2
-7
Maxis share return %
26
12
8
-6
-22
Berjaya share return %
41
23
12
-27
-55
For the above shares if the expected inter correlations are
given as follows:
Investment in RM millions
Weight
Correlation
Petronas
23
?
0.15(P,M)
Maxis
47
?
0.25(M,B)
Berjaya
40
?
0.35(B,P)
d) Compute Weights
e) Compute the expected portfolio return...
A university believes that the average retirement age among the faculty is now 70 instead of...
A university believes that the average retirement age among the
faculty is now 70 instead of the historical value of 65. A sample
of 35 faculty found that the average of their expected retirement
age is 68.4 with a standard deviation of 3.6. Conduct the
appropriate hypothesis test to determine if the mean retirement age
is not equal to 70.
Round your final answer to four decimal places. 0.0000
A sociologist believes that there is a relationship between number of friends an elderly person has...
A sociologist believes that there is a relationship between
number of friends an elderly person has and their perceived level
of stress.
Participant
# of Friends (Y)
Stress Level (X)
A
10
1
B
3
7
C
12
2
D
11
3
E
6
5
F
8
4
G
14
1
H
9
2
I
10
3
J
2
10
*higher scores of the measure of stress (from 1 to 10)
indicate more stress.
Use this information to answer questions...
A sociologist believes that there is a relationship between number of friends an elderly person has...
A sociologist believes that there is a relationship between
number of friends an elderly person has and their perceived level
of stress.
Participant
# of Friends (Y)
Stress Level (X)
A
10
1
B
3
7
C
12
2
D
11
3
E
6
5
F
8
4
G
14
1
H
9
2
I
10
3
J
2
10
*higher scores of the measure of stress (from 1 to 10)
indicate more stress.
Use this information to answer questions...
One person comes from a culture that believes “We’re all human, aren’t we?” Another person comes...
One person comes from a culture that believes “We’re all human,
aren’t we?” Another person comes from a culture that says “Status
is everything.” What problems might occur as these two individuals
try to communicate with each other?
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Managing at Camp Bow Wow Camp Bow Wow, a sort of combination day camp/B&B for dogs,...
- Situation: Suppose a large portion (approximately 20%) of the United States decides that the COVID-19 epidemic...
- Pick one of the following: • Technical Forecasting • Fundamental Forecasting • Market Based Forecasting Why...
- Compute Cash Provided by Operating Activities Prepare a partial statement of cash flows reporting cash provided...
- Are surveillance cameras worth the cost in terms of resources and loss of privacy, given the...
- Write Algoritm , code and output. In Operating Systems , . Implement a program for page...
- Programming assignment 9 Write a function sortWords(array) that does the following: 1. Takes as an input...
ADVERTISEMENT