A hospital researcher is interested in the number of times the average post-op patient will ring the nurse during a 12-hour shift. For a random sample of 50 patients, the following information was obtained. Let X = the number of times a patient rings the nurse during a 12-hour shift. For this exercise, x = 0, 1, 2, 3, 4, 5. P(x) = the probability that X takes on value x. Why is this a discrete probability distribution function (two reasons)?

Q: A recent study found that 25% of all adult males did not visit their physicians' offices last year.…

A: Solution

Q: Suppose Z is a discrete random variable with the following probability distribution: P(Z = 0) = 0.1…

A: Z is a discrete random variable with the following probability distribution:

Q: Find the probability that exactly 7 of the 10 claims are made by males under age 25.

A: Given that  n = 10 , p = 50% = 0.50 , q = 1 - 0.50 = 0.50 X ~ Binomial (n = 10 , p = 0.50) X =…

Q: There is a machine that sends binary messages (0 or 1). It is known that 0 and 1 are sent in the…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…

Q: Find the probability that exactly 2 of the 7 claims are made by males under age 25.

A: Given that  p = 70% = 0.70 , q = 1 - p = 1 - 0.70 = 0.30 , n = 7 X ~ Binomial (n = 7 , p = 0.70) X =…

Q: Suppose that 1 out of 1000 people tin a population have a particular disease. A test is developed…

A: It is given that 1 out of 1000 people in a population have a particular disease.

Q: A company employs 1000 workers, where on a given day one worker take a paid sick-leave with…

A: The sample size is 1000 workers. The probability that a given day one worker take a paid sick-leave…

Q: The table shows relative frequencies for red-green color blindness, where M represents "person is…

A:

Q: 57. Suppose 22% of students at a certain university are out-of-state students. A professor takes…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Suppose a certain towing service receive requests for assistant in an average of 10 per hour. Let…

A: Given, the number of requests for assistance received by a towing service is a Poisson process with…

Q: A certain affects virus 0.1% of the population. A test used to detect the virus in a person is…

A: Solution

Q: What is the probability that from the sample, less that 80.5% of them own a cell phone? 0.2033 What…

A: Let p be the population proportion of adults who own cell phones. Given that, Population proportion…

Q: please answer the question below :

A: The objective of this question is to calculate the probability of the supplier receiving orders of…

Q: QUESTION 2   Three hundred adults were asked whether or not they watch for calories and fat…

A:

Q: Suppose every bag of skittles has the following probability distributio P(green)=16%…

A: P(green)=16%  P(Orange)=19% P(Purple)= 18%  P(Red)=23%  P(Yellow)=24%

Q: The probability that Mr. Adam comes across a red light is 0.45 at any intersection. What is the…

A:

Q: A smartphone manufacturer admits that 12% of the smartphones they make have defects that could…

A: Given Data: 'X' is the number of smartphones manufactured that have defects p=0.12 n=20   X~…

Q: x is the number of defective parts in a sample of 10 randomly selected parts coming from a…

A:

Q: The yacht engines fail with probability equal to 0.3. Assuming that a yacht makes a safe trip if at…

A:

Q: Twenty-five percent of the employees of a large company are minorities. A random sample of 7…

A: Given data, 25% of employees are minorities =0.25 Let p be the proportion that employees are…

Q: Let X be a geometric random variable p = 0.3. What is the probability that X is an odd number?

A: Sol:- A geometric random variable models the number of trials required to achieve the first success…

Q: Suppose that the proportions of blood phenotypes in a particular population are as follows: A АВ…

A: Consider that the phenotypes of two randomly selected individuals are independent of one another The…

Q: An engine encounters a standard environment with a probability of 0.9, and a severe environment with…

A: Let M be the event representing an engine encounters a standard environment. Let N be the event…

Q: Suppose a study of driving under influence and driving without seatbelt produced the following data:…

A: Given data is   Driving under influence in year 2021 Driving not under influence in year 2021…

Q: Suppose a tire manufacturer rejects 3% of their tires produced because they have some sort of…

A: Given:  A tire manufacturer rejects 3% of their tires produced because they have some sort of…

Q: During emergency, incoming calls to an emergency hotline numbe are independent from one another.…

A:

Q: A psychologist determined that the number of sessions required to obtain the trust of a new patient…

A:

Q: n a conducted experiment, study shows the relationship of obesity and drinking habits, the following…

A: Guven that, in a conducted experiment, study shows the relationship of obesity and drinking habits,…

Q: find the probability P₁ that at least 9 out of 11 patients will recover.

A: It is given that n = 11 and p = 0.8.

Q: The proportion of individuals that regularly smoke in a population is known to be 0.25. What is the…

A: Given information: p=0.25 Sample size, n=100

Q: An Insurance company study shows that 40% of U.S. adults have high blood pressure. Suppose 10 U.S.…

A: given data P(high blood pressure) = p = 0.40sample size n  =10x = numer of adults with high blood…

Q: The Atacama Desert in Chile is known as the driest place on Earth. Suppose that in one part of the…

A: Introduction: The random variable X indicates whether a randomly selected year has rainfall or…

Q: An examiner knows from past experience, that students who consistently do all their homework have a…

A: Given Information: P(Passing the subject | Homework) = 0.9 P(Passing the subject | No Homework) =…

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

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

Q: 3.9P The number of telephone calls coming into the central switchboard of an office building…

A:

Q: During a Kansas tornado season, the probability a local grocery store experiences power outage on…

A: Given that, local grocery store experiences power outage on any workday is 0.125. i.e Probability…

Q: ssume that 33.2​% of people have sleepwalked. Assume that in a random sample of 1454 ​adults, 523…

A: Given: The population proportion of people who sleepwalked, P = 0.332            Sample size, n =…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.