1. As part of their customer service assessment, a manufacturer compiled the table below showing wait times (rounded to the nearest minute) for calls to their appliance help center. Wait time (min) 4 8. 10 Number 16 55 87 101 87 63 42 16 13 What is P(X = 1)? a. What is the mean of the random variable in this problem? g. h. What is the variance for the random variable in this problem? Assume that five people independently place a service call to the appliance help center. What is the probability that the waiting time of exactly one person is less than or cqual to i. 4 min? j. Assume that five people independently place a service call to the appliance help center. What is the probability that exactly two people wait more than 4 min? k. Assume that five people independently place a service call to the appliance help center. What is the probability that at least one person waits more than 4 min?

Question

Please do answers from g- h thank you 

1. As part of their customer service assessment, a manufacturer compiled the table below showing
wait times (rounded to the nearest minute) for calls to their appliance help center.
Wait time (min)
4
8.
10
Number
16
55
87
101
87
63
42
16
13
What is P(X = 1)?
a.
Expand
Transcribed Image Text

1. As part of their customer service assessment, a manufacturer compiled the table below showing wait times (rounded to the nearest minute) for calls to their appliance help center. Wait time (min) 4 8. 10 Number 16 55 87 101 87 63 42 16 13 What is P(X = 1)? a.

What is the mean of the random variable in this problem?
g.
h.
What is the variance for the random variable in this problem?
Assume that five people independently place a service call to the appliance help center.
What is the probability that the waiting time of exactly one person is less than or cqual to
i.
4 min?
j. Assume that five people independently place a service call to the appliance help center.
What is the probability that exactly two people wait more than 4 min?
k. Assume that five people independently place a service call to the appliance help center.
What is the probability that at least one person waits more than 4 min?
Expand
Transcribed Image Text

What is the mean of the random variable in this problem? g. h. What is the variance for the random variable in this problem? Assume that five people independently place a service call to the appliance help center. What is the probability that the waiting time of exactly one person is less than or cqual to i. 4 min? j. Assume that five people independently place a service call to the appliance help center. What is the probability that exactly two people wait more than 4 min? k. Assume that five people independently place a service call to the appliance help center. What is the probability that at least one person waits more than 4 min?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Probability

Other

Related Probability Q&A

Find answers to questions asked by students like you.

Q: Assume that one number from 1 to 7 is equally likely to be selected at random.Each number correspond...

A: It is given that the probability of selecting  one number from 1 to 7 is equally likely.Let A be the...

Q: Computer screening of tax returns is used to flag tax forms that need to be investigated further. Th...

A: (a)Denote F as the event that the computer flags the tax return and E be the event that the tax retu...

Q: 28. According to data released by the Chamber of Commerce of a certain city, the weekly wages (in do...

A: Given dataMean (µ) = 575Standard Deviation (σ) = 50Probability that a female worker selected at rand...

Q: Let X be a geometric random variable with parameter px parameter py 1/2 and let Y be a geometric ran...

A: Geometric distribution:A random variable x is said to follow a geometric distribution, if the probab...

Q: The records of a computer retail store show that out of the 25 customers who purchased a desktop c...

A: Given Data17 out of 25 purchased desktop computers78 out of 100 purchased notebook computer

Q: An urn contains three quarters, six dimes, and two pennies. (a) Randomly pick a coin from the urn an...

A: From the provided information,The urn contains three quarters, six demes and two pennies.1 quarter =...

Q: Camila sets up a passcode on her tablet, which allows only five-digit codes. She hasheard that it's ...

A: According to the provided data, the passcode allows only five digit codes. The passcode is more secu...

Q: 15 E #1

A: There are 4 letters A, B, C and D.Here, use letter is allowed to use again.

Q: For a Student's t distribution with  d.f. = 10  and  t = 3.080,  consider the following. (a) Find an...

A: (a)p-value:For sample size n, the degrees of freedom (df) is n – 1. Here, df = 10.The p-value of thi...

Q: An informal experiment was conducted at McNair Academic High School in Jersey City, New Jersey, to i...

A: According to the provided information the final exam score of two classes are given. One classes, wh...

Q: Assume that you have three computers and two sensors in a subway train. If all three computers and o...

A: From the given information p denotes the probability of a computer failing and q denotes the probabi...

Q: In a survey of 1000 eligible voters selected at random, it was found that 100 had a college degree. ...

A: It is given that 100 voters have college degree in which 90%(=90) are voted and remaining 10%(=10) a...

Q: The shaded regions in each of the following standard normal curves represent the significance levels...

A: For the first graph the shaded region is in the left side. Hence, the test is left-tailed test.Step-...

Q: A teachers looks over her class and notices a few trends. Out of the 60 students in the class, 23hav...

A: According to the provided data, the total number of students are 60 out of which 23 have brown hair,...

Q: #5 please

A: Solution: We are given that there is 35% chance that the soil has a high copper content  and 25% cha...

Q: Can you see the next number in this sequence: 3, 8, 11, 16?

A: The difference between the first number 3 and second number 8 is 5.The difference between the second...

Q: what are the mean, variance, pdf, and cdf of the following distributions  Normal Exponential Unifor...

A: The mean, variance, pdf and CDF of the following distributions are as given below:

Q: A small hotel in a popular resort area has 20 rooms. The hotel manager estimates that 15% ofall conf...

A: Consider X be a random variable which follows binomial distribution indicating the number of confirm...

Q: The following data represent the planned rated capacities in megawatts (millions of watts) for the w...

A: 1.In the Stem and Lead plot mostly it considers the last digit as leaves and all the digits before t...

Q: In a club with 7 male and 11 female​ members, how many 4-member committees can be chosen that have ...

A: (a) From the given information, the club with 7 male and 11 female members. And 4-member committee i...

Q: Hi,I am doing some practice questions and I was wondering how to go about doing the problem in the a...

A: Probability of an event:The formula for probability of an event is as follows:

Q: Bob is Phil’s father. Jack is Phil’s only brother.  Tina is Phil’s sister-in-law.  Phil is not marri...

A: In this case, it can be observed that John is Jack’s son and Jack is Phil’s brother and Tina is Phil...

Q: What does the law of large numbers (Bernoulli) predict will be the percentage of heads if you flip a...

A: Probability of getting a head p = 0.5Sample size, n = 500Predicted Number of heads is given by E(X) ...

Q: Probability and Statistics

A: It is provided that the events A, B and C are independent.Therefore,

Q: During the spring of 2010, the news media were already conducting opinion polls that tracked the for...

A: According to the provided information, the news media were already conducting opinion polls that tra...

Q: the time X that a lightbulb can last (life lenght) is a distribution with mean 1 year and standard d...

A: The probability that the average life length of the lightbulbs is greater than 1.02 years is 0.3446,...

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing f...

A: Total number of marbles = 4+2+5+1                                                      =12Total numb...

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason fo...

A: The null and alternative hypotheses are;

Q: The 98.6 degree standard for human body temperature was derived by a German doctor in 1868. In an at...

A: a)From the histogram shown in the question, the shape of the distribution is approximately symmetric...

Q: Compute the percentage for each of the following fractions (to one decimal place, if not a whole num...

A: The given fraction is 12/50.

Q: Two cards are drawn in succession and in without replacement from a set of 12 cards. How many sets o...

A: Permutation:         The act of arranging the members of a set into an order or sequence, if it is a...

Q: Giving a test to a group of students, the grades and gender are summarized below ABCTotalMale1315937...

A: Click to see the answer

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing t...

A: According to the provided information, a bag contains 3 red, 5 green, 4 white and 1 purple marbles. ...

Q: The histogram for data is attached: Does it form a bell shaped curve? explain what this means and ho...

A: A distribution is known to be positively or right skewed if most of the data is on the right side of...

Q: As part of an annual review of its accounts, a discount brokerage selects a random sample of 28 cust...

A: The provided information are:

Q: Question is attached

A: a).The required probability can be obtained by entering the formula “=NORM.S.DIST(1.68,TRUE)” in EXC...

Q: Thank you :)

A: 3. The probability that you decide to take MATH is 0.3625 and it is calculated below: From the given...

Q: According to a certain news poll, 80% agreed that it should be the government's responsibility to pr...

A: Let A be the event that the proposal should be the government’s responsibility to provide a decent s...

Q: A fast-food restaurant chain has 574 outlets in the United States. The following table categorizes t...

A: The city population size and location table is shown below:

Q: A 3-card hand is drawn from a standard deck of 52 playing cards. Find the probability that the hand ...

A: Number of cards in a deck = 52Total number of diamond cards = 13Number of cards that are not diamond...

Q: Calculate the quotient for each of the following fractions: (1) 325/25    (2) 49/7  (3) 1,800/9  (4)...

A: Quotient:In an arithmetic operation, the quotient is the quantity that is obtained by the dividing t...

Q: Also find EY|X(y|x=2)

A: 6.46 From the given information, the joint density function for X and Y is,

Q: Can u please do question 20.

A: 20.The expected winning for the games of chance is obtained below:From the given information,  for a...

Q: So there is 5 red and 6 white card. Suppose you draw two cards in succession without replacement, wh...

A: From the given information, there are 5 red and 6 white cards. Here, two cards are drawn without rep...

Q: Suppose that a machine performs n independent number of trials in the making of bulbs. Each trial re...

A: Binomial distribution:The binomial distribution gives the probability of number of successes out of ...

Q: Probability and statistics

A: a.Computing the expected value of X:The expected value of X is given below:

Q: 1) Suppose that a bag contains one white chip and two red chips. Two chips are going to be selected ...

A: The total number of chips in the bag is 3. The number of white chips is 1.

Q: A data set consists of the ages at death for each of the 38 past presidents of the United States now...

A: a).The data contains about all 38 deceased U.S presidents. Therefore, the set of measurements is a p...

Q: #1 please

A: Preliminary calculation:Here P(A)=27%, P(B)=45%, P(B∩Ac)=36%.

Q: A discrete variable can take on only the values 0, 1, or 2. A set of 20 measurements on this variabl...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...