Start your trial now! First week only $4.99!*arrow_forward*

Question

The following table represents a grouped frequency distribution of the number of hours spent sleeping per week for 54 students. What is the class width?

Hours Number of students

35.0-40.9 4

41.0-46.9 19

47.0-52.9 14

53.0-58.9 11

59.0-64.9 6

Tagged in

Math

Probability

Find answers to questions asked by students like you.

Q: A Company researcher has been given the task of collecting information about all employeeswithin the...

A: Solution: Given: The probability that an employee has been at the company five or more years is 0.74...

Q: 4.3-6 b only

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case yo...

Q: At a particular factory, refrigerators inspectors on an assembly line notice that a randomly selecte...

A: As per the given data, Randomly selected refrigerator will have too much enamel with probability 0.2...

Q: Probability Question

A: Note: Hey there! Thank you for the question. As you have posted multiple sub-parts, we have solved t...

Q: The following table provides a frequency distribution for the number of rooms in this country's hou...

A: Given: Room Number of units 1 527 2 1439 3 10988 4 23331 5 27945 6 24601 7 14655 ...

Q: A Company researcher has been given the task of collecting information about all employeeswithin the...

A: Let us denote that: A=an employee has been at the company five or more years B=an employee has a Mas...

Q: The following table displays a frequency distribution for the number of crew members on each shuttle...

A: d. The frequency distribution is given as, Crew size Frequency 2 1 3 6 4 38 ...

Q: For years, the drug Vioxx, developed andmarketed by Merck, was one of the blockbusterdrugs on the ma...

A: Click to see the answer

Q: A sales firm receives an average of three calls per hour on its toll-free number. Suppose you were a...

A: a)(i) Since, the probability of calls in an given hour has been asked, the Poisson distribution fits...

Q: 4.4-3

A: 4.4-3 From the given information, f(x,y)=2e-x-y, 0≤x≤y<∞ Consider, f(x)=∫yf(x,y)dy =∫y=x∞2e-...

Q: Rework problem 27 from section 3.1 of your text, involving a malfunctioning television set. Use the ...

A: For the given data, the venn diagram representation is,

Q: 4.4-11

A: The joint pdf is f(x,y)=cx(1-y), 0<y<1 and 0<x<1-y a) ∫01∫01-yf(x,y)dxdy=1∫01∫01-ycx(1-y...

Q: Assume that a procedure yields a binomial distribution with a trial repeated n=13n=13 times. Use eit...

A: Click to see the answer

Q: Suppose A, B, and C are events so that P ( A ) = 0.2 , P ( B ) = 0.5 , P ( C ) = 0.3 , P ( A ∩ B ) =...

A: Suppose A, B, and C are events, So that P ( A ) = 0.2 , P ( B ) = 0.5 , P ( C ) = 0.3 , P ( A ∩ B ) ...

Q: A card has to be drawn from a special deck of cards. The cards included in this deck have a number a...

A: There are 9 red cards, 9 blue cards, 9 black cards, 9 green cards and 9 violet cards. Total number o...

Q: The probability of a sale is 0.50. What are the odds in favor of a sale?

A: The complement of any event is the elements which are not in that event. Then, the probability of no...

Q: Probability Question

A: Given venn diagram A denotes event “The student is in computer club” B denotes the event “The stude...

Q: 4.4-13 a only

A: Click to see the answer

Q: Assume that the critic finds that 25 percent of the movies have positive comments about the plot, 40...

A: The event A is defined as the movies have positive comments about the plot, event B is defined as mo...

Q: Consider the following cumulative probability distribution. 1 3 4. P(XSx) 0.15 0.35 0.52 0.78 0.84 1...

A: Note: Hi there! Thank you for posting the question. As there are several independent questions. Acco...

Q: Many states in the U.S.A have a lottery game, usually called a Pick-4, in which you pick a four-digi...

A: As per bartleby guidelines only the first three subparts are to be solved. Please upload other parts...

Q: 1.4.8. In a certain factory, machines I, II, and III are all producing springs of the same length. M...

A: Let us denote: A= produced from the machine I B= produced from the machine II C= produced from the m...

Q: Suppose that for a given computer salesperson, the table below gave the probability distribution of ...

A: For ease of calculations, we construct the following table: X P(X) X. P(X) (x-X_bar) (x-X_bar)^...

Q: It is reported that American adolescents spend an average of μ =4 hours per day using smart phone (σ...

A: According to the provided information, μ =4 σ = 2

Q: 6. The below data are a sample of cholesterol levels taken from 24 hospital employees who were on a ...

A: For the data, draw an histogram for differences data in excel with number of bins=5 as The histogram...

Q: Probability Question

A: Given observation and calculation is shown below

Q: If a seed is planted, it has a 95% chance of growing into a healthy plant.If 11 seeds are planted, w...

A: Given that there are 11 seeds are planted. That is,n =11. It is given that 95% chance of growing int...

Q: The cost of textbooks is normally distributed with a mean of $249. You do not know the population st...

A: Given Information: The cost of textbooks is normally distributed with a mean of $249. Mean = 249 Sta...

Q: Suppose that 26 of the 65 state governors in a country were women. On each day of 2013, one of thes...

A: Given that 26 of the 65 state governors in a country were women. That means the probability of sele...

Q: 21.1% of flowers of a certain species bloom "early" (before May 1st). You work for an arboretum and ...

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want solution...

Q: Let C be a unit circle centered at origin. Point P1 is chosen randomly from the circumference of C. ...

A: Here ,let the first point(P1) on the circumference of the circle be depicted as (x0,y0) and the sec...

Q: What is the cuestione

A: From the pie chart, we see that 23% is the highest portion. That occurs for tailgating. Total percen...

Q: You should still assume that no refrigerator has both too much and too little enamel; however, use t...

A: First we have to find the probability of paint defect which includes an improper amount of paint = P...

Q: The weight of a sophisticated running shoe is normally distributed with a mean of 12 ouncesand a sta...

A: A z-score represents the position of a data point in terms of its distance from the mean when measur...

Q: probability of failure during any given flight is .005 for the central engine and .008 for each ofth...

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment. Pro...

Q: A local high school has both male and female students. Each student either plays a sport or doesn't....

A: Given, FEMALE MALE TOTAL NO SPORT 12 15 27 SPORT 36 17 53 TOTAL 48 32 80 Let Sports be...

Q: Dana Morales and Brandon Nguyen are good friends and they decided to open a gourmet dessert place in...

A: Click to see the answer

Q: Workings needed please

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will an...

Q: What happens to the 'mean' of an x-distribution when you standardize the distribution? Z-scores are ...

A: The mean and standard deviation of the standard normal distribution is 0 and 1.

Q: A day's sales in $1000 units at a gas station have a gamma distribution with parameters k = 5 and 2 ...

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want solution...

Q: NOTE: Do NOT use the online normal calculator - Use the EMPIRICAL RULE to complete the problems in t...

A: Solution: Let X be the number of phone calls answered each day. From the given information, X follow...

Q: Suppose 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the uns...

A: As per honor code we will provide solutions for first three parts only. Given information: Mean = 3....

Q: The results of a common standardized test used in psychology research is designed so that the popula...

A:

Q: In China, 4-year-olds average 3 hours a day unsupervised. Most of the unsupervised children live in ...

A: Let us denote X=number of hours unsupervised. Given that X follows a normal distribution with mean=3...

Q: Use the given data to find the minimum sample size required to estimate a population proportion or p...

A: Click to see the answer