Find the probability that in a randomly selected office hour, the number of student arrivals is 5.

Q: If the mean number of serious accidents per year in a large factory is 4, find the probability that…

A: Obtain the probability that in the current year there will exactly 4 accidents. The probability that…

Q: The Royal Armouries Museum receives 48 people per hour during weekdays. What is the probability of…

A: Let X denote the number of people receive in 5 minutes. It is given that Number of people in 60…

Q: During the 2013 regular NBA season, DeAndre Jordan of the Los Angeles Clippers had the highest field…

A: Formula :  Binomial distribution is given by

Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: A company that advertises on the radio in a certain area receives on average 11 calls everytime it…

A: Formula : poisson distribution is given by

Q: A study indicates that 67% of students have have a laptop. You randomly sample 7 students. Find the…

A: Given that, The random variable X students have a laptop The probability of success is 0.67 p=0.67…

Q: A math professor finds that when she schedules an office hour for student help, an average of 2.3…

A: Step 1:The probability mass function of the poisson distribution is given by…

Q: The Newspaper reports that among individuals in the 40 to 50 age, 45% drink coffee. If 200 people of…

A: Givenp=0.45n=200let "x" be the number of coffee…

Q: The probability that a student in Oakland will receive a B in Kathy Williamson's statistics class is…

A: Given that, The probability that a student in Oakland will receive a B in Kathy Williamson's…

Q: In a survey of college students, 840 said that they have cheated on an exam and 1765 said that they…

A: Given that Number of students who have cheated =840 Number of students who have not cheated =1765 If…

Q: In a communication channel, data is sent in 10-bit packets. The percentage of a bit sent with error…

A:

Q: 27% of all college students major in STEM (Science, Technology, Engineering, and Math). If 35…

A: Formula : Binomial distribution is given by

Q: The probability that a student pilot passes the written test for a private pilot's license is 0.55.…

A: Probability distributions are of two types, discrete and continuous distributions. Binomial…

Q: The average number of phone inquiries each week at a poison control center is 80. Find the…

A: Given that in 1 week means in 7 days the center receives 80 calls.  So in 1 day, it receives 807…

Q: In a large population, 61% of the people have been vaccinated. If 5 people are randomly selected,…

A: From the given information, Sample size (n) = 5, Probability of success (p) = 0.61.

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

A:

Q: fish that are above the legal limit and 3 that are not. What is the probability that he'll catch 3…

A:

Q: 62 out of 136 people suffered some type of depression last year. Find the probability that if you…

A: Given n=5

Q: ind the probability that in a randomly selected office hour, the number of student arrivals is 66.

A: A statistics professor finds that when he schedules an office hour for student help, an average of 3…

Q: An average of 3 cars arrived at a highway tollgate every minute. What is the probability that at…

A:

Q: A high school baseball player has a 0.231 batting average. In one game, he gets 9 at bats. What is…

A: A high school baseball player has a 0.231 batting average it means that they'll get a hit in any one…

Q: The probability that a patient recovers from a delicate heart operation is 60%. There are 20…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 42​% use them in meetings or…

A: Here, theoretically, if we consider using of smartphones during meetings or classes, when selected…

Q: A phone company reports that 52 % of its customers subscribe to their high-speed internet service.…

A:

Q: If half of the 100 passengers are​ men, find the probability that the mean height of the 50 men is…

A: The mean is 69 and standard deviation is 2.8.

Q: terback completes 67% of his passes, what is the probability that he will not complete his

A: A: The quarterback will complete passes The probability of passing is  P(A) = 0.67

Q: In a survey of college​ students, 808 said that they have cheated on an exam and 1770 said that they…

A: Given that in a survey of college​ students, 808 said that they have cheated on an exam and 1770…

Q: study indicates that 29% of singles have have tried online dating. You randomly sample 9 singles.…

A: Let X be the random variable from binomial distribution with probability (p) = 29% = 0.29 and sample…

Q: Tennis great Roger Federer made 65% of his first serves in the 2011 season. When Federer made his…

A: Given data; First serve  = 65% Fisrt serve win = 78% Second serve win = 57% To find:  the…

Q: Kiara sets up a passcode on her smart phone, which allows for 7 digits. She was informed that using…

A: Given: A smartphone allows 7 digits password she is a digit twice makes the phone more secure.

Q: A telephone switch board in a firm receives on a average 90 calls per hour. Find the probability…

A: X~ Poisson (lemda=90) Pd.f. of X is given by, p(x)= e-lemda(lemda)x/X!

Q: Doctors have indicated that 33% of the US population has A+ blood which is the second most common…

A:

Q: In a large population, 52% of the people have been vaccinated. If 5 people are randomly selected,…

A: Here n=5AndP=52%=0.52

Q: In a recent survey, 80% of the citizens in a community favored the building of a post office. If 15…

A: Solution

Q: The average number of field mice per acre in a wheat field is estimated to be 1.2. Find the…

A: Given, The average number of field mice per acre in a wheat field is estimated to be 1.2. The…

Q: For a recent year, approximately 36,000 people were killed in the United States in motor vehicle…

A: Given,

Q: A high school baseball player has a 0.181 batting average. In one game, he gets 7 at bats. What is…

A:

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.