4- Hospital stays for knee replacement Patients. Hospital records indicated that knee replacement patients stayed in the hospital for the number of days shown in the distribution. Number of days stayed 3 4 5 6 7 Frequency 15 32 56 19 5 Total 127 >) Find the probability (at most 4days) a)Find the probability (fewer than 6 days) (b) Find the probability (at least 5 days) 35

Q: A couple wishes to have children until they have exactly two female children in their family. a.…

A:

Q: Construct a probability distribution for tossing 3 coins. Assume X be the number of tails.

A: here number of trials( number of times the coin is tossed)=3 in tossing a coin for once , the…

Q: A class has 18 boys and 12 girls. The teacher calls on students at random to recite. What is the…

A: Given that  Total students=18+12=30 Boys students=18 Girls students=12 Teacher calls on students at…

Q: There is an average of 4 accidents in a week on a major highway in the city. What is the the…

A: Given,The average no.of accidents in a week (λ)=4Let X=no.of accidents in a week…

Q: Let W be weight in kg, taken from 1000 student and W ~ N (50,25) 1. What is the median weight in kg?…

A: From the provided information, Mean (µ) = 50 Standard deviation (σ) = 25 W~N (50, 25)

Q: 6. Data show that 20% of all patients who make appointments at a primary-care clinic never show If…

A: Please help with number 6 a, b, e   Proportion of patients who make appointments and never show up =…

Q: The average number of Toyota Fortuner cars that you can see on your drive to work is 21, What is the…

A: The average no.of Toyota fortuner cars =21

Q: The table summarizes results from 979 pedestrian deaths that were caused by automobile accidents.…

A: Given that, The table summarizes results from 979 pedestrian deaths.

Q: Teens who Prefer Hard Copy Book vs eBook Hard Copy Enjoy Both eBook 22 14 26

A:

Q: a) Find the probability that the winner won gold, given that the winner was from the U.S. P (gold I…

A: Given: A contingency table.

Q: The distribution of blood types for 100 Americans is listed in the table. If one donor is selected…

A: Introduction: Probability of an event can be defined as the relative frequency of an event in the…

Q: 4632673 flights arrived in Dubai’s airport last year. 43135 from them arrived from Europe. Estimate…

A: Given, 4632673 flights arrived in Dubai’s airport last year. 43135 from them arrived from Europe.…

Q: In a five card poker hand, what is the probability of being dealt exactly one seven and no picture…

A: Here given five card poker hand dealt from standard deck of 52 cards  Here total picture cards = 12…

Q: In a survey of single-pet owners, it was found that some had cats and some had dogs. The following…

A: Total female is 90. Total cat is 80. Number of female on cat is 68. Total people is 140.

Q: Assume that when adults with smartphones are randomly selected, 44% use them in meetings or classes.…

A: Given Information: Probability of success, p = 44% = 0.44 Number of trials, n = 7 To find the…

Q: Construct a probability distribution for a family of three children. Let X represent the number of…

A: Given that there are 3 children.  X=the number of girls So the possible values of X are 0, 1, 2, 3

Q: Suppose that the number of car accidents per day in Wilmington, NC has been recorded for the past…

A: Probability of at least two accidents = P(2accident) + P(3 accident) + P(4 accident)

Q: The probability that a patient will have 0,1,2,3 medical tests performed on a hospital is…

A: Given : The prob. that a patient will have 0 , 1 , 2 , 3 medical tests performed on a hospital is…

Q: b. The probability is 0.18 that the air pollution level in a given region will be in the unsafe…

A: HERE given ,  the probability is 0.18 that the air pollution level in a given region will be in the…

Q: A real estate agent has 16 properties that she shows. She feels that there is a 50% chance of…

A: Given,n=16p=50%=0.5,m 1-p=1-0.5=0.5Compule the probability of selling less than…

Q: The number of inches of rain that fell during the month of April was recorded over time.  The number…

A: a) Total number of years = 4+13+21+10+2=50 years.  To find probabilities we divide all frequencies…

Q: nfamilies with five children, find the mean number of children who will be girls. Show the…

A: Given: there are 5 children in family

Q: In the United States, voters who are neither Democrat nor Republican are called Independent. It is…

A:

Q: A. What is the probability that none of the people are Independent? Probability= B. What is the…

A: In the United States, voters who are neither Democrat nor Republican are called Independent. It is…

Q: Assume that when adults with smartphones are randomly selected, 39%use them in meetings or classes.…

A: Let us assume X= the number of persons who uses smartphones in meetings or classes n= number of…

Q: Naval intelligence reports that 8 enemy vessels in a fleet of 20 are carrying nuclear weapons. If 5…

A: The total number of vessels, N=20The number of vessels carrying nuclear weapons, K=8The number of…

Q: The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For…

A: Given, the number of deaths in the U.S in a year due to variety of causes.

Q: Find the probability distribution for the number of heads that will occur when 5 coins are tossed

A: Given,  No of coins tossed = 5 Let x be the number of heads appeared during the tossing of 5 coins.…

Q: Customers arrive at a checkout counter in a department store at an average of 7 customers per hour.…

A: The given information is about the arrivals in a checkout counter in a store. The average number of…

Q: Five cards are selected at random from a fair deck. What is the probability that they contain more…

A: Combination: The number of different selections of ‘x’ elements (order doesn’t matter) from a set of…

Q: probability distribution of the number of boys in a family with 4 children

A: Given that  A family with 4 children. = n = 4 The probability distribution of number of boys in a…

Q: A lumpia vendor sells an average of 41.5 lumpias per day. What is the probability that the vendor…

A:

Q: The average number of phone inquiries each day at the customer service is 40. Find the probability…

A:

Q: In the United States, voters who are neither Democrat nor Republican are called Independent. It is…

A: Given, n = 23 p = 0.10 q = 1 - p = 0.90       To find, a) What is the probability that none of the…

Q: Find the probability of green occurring on two consecutive plays on a roulette wheel.

A: Given: Total number of squares = 38 Number of green squares = 2 Probability of each square = 138

Q: The Jones family was one of the first to come to the U.S. They had 7 children. Assuming that the…

A: It is given that n=7 and p=0.5.