Mr Jones had 640 books.He sold 1/4 of them for two dollars each in the month of September he sold half of the remaining books in October each book he sold in October only 3/4 of each book sold for in September how much money did Mr. Jones earn selling books so you thinking with a tape diagram

Q: Question Help ▼ A large batch of industrial products will be transferred with a cargo plane and they...

A: Definition  Type 1 error: Probability of reject Ho, when H1 is true is called type 1 error Type 2 er...

Q: You decide to play K number of video games, where K is a Poisson random variable with parameter A. A...

A: K = Number of video gamesK~ P(λ)P(K=k) = e-λλkk!; k=0,1,2,....E(K)=λVar(K) =λtk = time spend on a kt...

Q: Lucy took three tests. If her median score was 88, her mean score was 87, and the range was 11, what...

A: Given Data: Let the three numbers be a, b and c    Median=88 Therefore, b=88

Q: Please help me answer the questions.

A: Use the standard normal table to find the required probability.   

Q: Tickets numbered 1-100 are put into a hat, and four tickets are drawn randomly. Once a ticket is dra...

A: The number of tickets are 100. The prize for the first ticket drawn is $1000. The prize for the seco...

Q: Citrus Rental is a popular car rental agency that has a history of having too few cars available, so...

A: From the given information we conduct T test for one mean.

Q: Jse the method of linear programming to solve the problem Five friends, all of wham are experienced ...

A: We have to find the number of breads and number of cakes to make each day to maximize profit.

Q: An air traveler from Istanbul to Ankara have two options on Turkish Airlines: a 190 TL fare with a 5...

A:

Q: can you please solve and answer this huhuhu?

A: We have to solve given formula.....

Q: An aptitude test is designed to measure leadership abilities of the test subjects. Suppose that the ...

A: Here the scores of aptitude test is normally distributed with mean 570 and SD=125, ie X~N(570,125). ...

Q: Write the proposition “I come to class whenever there is going to be a quiz” in the form “if p then ...

A: The statement "I come to class whenever there is going to be a quiz" can be written as: "If there is...

Q: roll 12 dice simultaneously, and let x denote the number of 6’s that appear. find the probability of...

A: The probability of getting a 6 in a dice roll is p=16 The number of dices are 12 so n=12 The probabi...

Q: he distribution of the number of imperfections per 10 meters of = fabric is given by the following f...

A: We have to calculate the expected cost i.e E(g(X)) = E(1/100(x2 + 2x + 10))

Q: justify your solution and answer. answer this ASAP

A: The given events can be taken as H be the event that the body temperature is higher than the normal ...

Q: 1. Yana wants to travel and visit caves in the Philippines. However, because of tight budget, she ca...

A: Note : As per Bartleby's guideline for more than one questions only first is to be answered please u...

Q: There are 7 women and 9 men with a chance to be on a game show.The producer of the show is going to ...

A: Given, There are 7 women and 9 men with a chance to be on a game show.The producer of the show is go...

Q: While driving along a long route that has 5,000 intersections, the probability of encountering a red...

A: Given  n=5,000, p=0.005, we want to find the probability  P(X>=2)= ? By using normal approximatio...

Q: You want to read books and the number of books you read is X which is a Poisson random variable with...

A: Given that the number of books read is X, which is a Poisson random variable with parameter λ and N ...

Q: Given that he arrives on City D on the train he hoped to catch, what is the probability he does so o...

A: Given : Professor has to travel from A-D The routes would be : A-B, B-C, C-D For the routes A-B, B-C...

Q: The records of a casualty insurance company show that, in the past, its clients have had a mean of  ...

A: The null hypothesis is the hypothesis which is tested for possible rejection under the assumption th...

Q: For the experiment of rolling a single fair​ die, find the probability of obtaining not greater than...

A: When a die is rolled the possible outcomes are S={1,2,3,4,5,6} find the probability of obtaining not...

Q: a) What is thé probability that their date has been interrupted by 8:00pm? b) If the number of times...

A: Solution:

Q: A mom walks into her child's room and finds clothes all over the floor. 20% of the clothes are clean...

A:

Q: You are playing Poker. You are dealt the 6 of Diamonds, the 8,9,10 of Hearts and the Jack of Clubs. ...

A:

Q: Assume that a root beer factory’s production is normally distributed with a mean of 100,000 gallons ...

A: We have to use normal distribution for finding the probability.

Q: Approximately 60% of all American students who attend college are female. 120 samples of size 50 wer...

A: we have given that  sample size n= 120 ,and favorable cases x= 50

Q: b. P(r > 49000) = P(z > c. There is a(n) % chance that the mean salary of a random sample is more th...

A: B : p[x>49000]=p[z>-1] =.5+.3413=.8413 from normal table given above.  

Q: Problem One: The fixed cost for a company is 1200 OMR and the variable cost is 2 OMR pe 100 unit. If...

A: Solution is given below

Q: An unfair die with Pr[3] = 0.20 is rolled 100 times. What is the standard deviation of the number of...

A:

Q: The records of a casualty insurance company show that, in the past, its clients have had a mean of  ...

A: Here we want to know the null and alternative hypothesis.

Q: if the digits of a two-digit number are reversed the number is increased by 36. the sum of the digit...

A: Let the unit digit = 'a' and the tens digit digit = 'b' The original number = 10a + b  The number re...

Q: Question Help v Response rates for customer complaints by Companies A and B are observed for 8 conse...

A: For A : Standard Deviation, s: 0.061396 Count, N: 8 Sum, Σx: 3.73 Mean, x̄: 0.46625 Varianc...

Q: Solve Exc.6.42-43 given at Pic.2. Explain the results with a plain expression, support with graphs.

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

Q: Variability Jason and Eric had the same grade for the first nine weeks. The standard deviation of Ja...

A: Lesser the satandard deviation indicates higher consistent data.

Q: Tickets numbered 1-100 are put into a hat, and four tickets are drawn randomly. Once a ticket is dra...

A: Given ,  Number of tickets = 100  ticket selected = 54    

Q: A TV studio has brought in 6 boy kittens and 8 girl kittens for a cat food commercial.The director i...

A: There are 14 kittens all together, 8 of which are male and 6 female. n(F)= 6 , n(M)= 8  The sample s...

Q: In a bag there are 12 blue and 8 red sweets. Draw a Tree Diagram to show all possible outcomes when ...

A:

Q: Sickle cell anemia is a recessive trait in humans.Typically, only people with two copies of the sick...

A: Here, we can make 4 possible combinations: { AA, Aa, aA, aa }

Q: Probability Question

A: note: According to Bartleby Expert guideline, we can answer only first three subparts of a question ...

Q: Which of the following are valid probability distributions? Distribution 1 4 P(z) 1/7 2/7 2/7 3/7 2/...

A: For a valid probability distribution, the sum of probabilities for all the values of X should be 1 a...

Q: How to solve question 3 A population consists of six values (12, 14, 16, 18, 20, and 22).   Select a...

A: Introduction :-  A population consists of six values (12, 14, 16, 18, 20, and 22). We have to take a...

Q: Please help me answer the questions

A: For math test, mean = 75 and SD = 8 For life of a grill, mean = 3.5 and SD = 0.35 For ambulance resp...

Q: Which of the following statements is correct? a. The mean of the sampling distribution of the means ...

A:     The means of the samples drawn from a population are always equal to the population mean .   The...

Q: 54. Calibrating a scale: Making sure that the scales used by businesses in the United States are a...

A: The 50 scale readings have a sample mean of  = 1000.6 grams. The scale is out of calibration if the ...

Q: A committee of 5 people will be selected at random from a group of 12 men and 15 women. How many dif...

A: we have to find no. Of ways..

Q: A).  A COMPANY IS CONDUCTING AN ONLINE SURVEY OF RANDOMLY SELECTED INDIVIDUALS TO           DETERMIN...

A: There are total 2451 persons surveyed and out of them 196 of them rarely recycled. So, probability t...

Q: One personality test available on the World Wide Web has a subsection designed to assess the "honest...

A: Given Data: x¯=152s=28   a) Null and Alternate Hypothesis: H0: μ=148 H1: μ>148

Q: (a)Consider a t distribution with  6  degrees of freedom. Compute  P≤t1.90 . Round your answer t...

A: Answers are (a)   0.9469

Q: with complet solution please

A: Given Information: A die is tossed twice. Ω=x,y|x,y ∈ 1,2,3,4,5,6 Pmn is the set of outcomes m denot...

Q: Suppose that X is a random variable for which the m.g.f. is as follows: M(t) = 1/4(3et+e-t), -∞<t...

A: We can get the mean and variance after finding the first and second derivative of mgf at t= 0