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: 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: 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: 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 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: 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: 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: 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: 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: 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: 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: 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.