Thirteen percent of adults are left-handed. In a group of 30 adults, find the probability of finding at least one lefty.

Q: According to government data, the probability that an adult was never in a museum is 15%. In a…

A: The probability density function of binomial distribution is: Here, p=0.15, n=10.

Q: aple of fifty college students, what is the probability that at least forty of them participate in a…

A:

Q: In one town, 28% of all voters are Democrats. If two voters are randomly selected for a survey, find…

A: Given that, Probability, p = 28% = 0.28 Sample size = 2

Q: In a family of 11 children, what is the probability that there will be more boys than girls?

A: Given: Number of children in the family n=11

Q: d) Calculate the probability that 12 patients do show up.

A: From the given information, 10% of all patients who make appointments at a primary-care clinic do…

Q: Sixty percent of the tourists in London go to Buckingham Palace and forty percent visit Kensington…

A: Solution: Let A be the  event that tourists in London go to Buckingham Place. and B be the event…

Q: At a high school with 200 students. 32 play soccer, 18 play basketball, 8 play both sports, find the…

A: The number of students play soccer is 32.

Q: A basketball player has a 75 percent chance of making a free throw. What is the probability of his…

A: INTRODUCTION :  Binomial distribution: a discrete random variable X is said to follow a binomial…

Q: Find the probability that the student was male AND got a "A".

A:

Q: In a family with 4 children, excluding multiple births, what is the probability of having exactly 1…

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

Q: In a small private​ school, 6 students are randomly selected from 14 available students. What is the…

A: no of ways selecting r items from n is C(n,r)

Q: When tossing a balanced coin seven times, the probability of getting three heads only is ?

A: Probability is given by: Number of Favourable outcomesNumber of Total outcomes  As it is a balanced…

Q: If the probability of choosing a red chip from a bucket is 0.4, What is the probability of not…

A: We have the probability of choosing a red chip from a bucket is 0.4

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A: Let X represent random variable   n=5 p=0.08   X~ binomial (5, 0.08)

Q: In a family with 3 children, excluding multiple births, what is the probability of having exactly 2…

A:

Q: What is the probability of choosing a student who is a 10th grader or a student who prefers math?

A:

Q: In a family with 7 children, excluding multiple births, what is the probability of having exactly 1…

A: It is given that there is equal chances of having a boy and a girl. So the probability of having a…

Q: Suppose that 44% of people have dogs. If two people are randomly chosen, what is the probability…

A: It is given that, 44% of people have dogs. It means, probability that a people have dogs= p = 0.44…

Q: A teen magazine surveyed 9th grade students about their favorite sport. The table shows the data for…

A: Given data: The total numbers of students are n=405. The numbers of male students are m=200. The…

Q: In one town, 44% of all voters are Democrats. If two voters are randomly selected for a survey, find…

A: Given that, 44% of all voters are Democrats.  Sample size, n = 2

Q: A poll showed that 50% of Americans say they believe that life exists elsewhere in the galaxy. What…

A: here given , A poll showed that 50% of Americans say they believe that life exists elsewhere in the…

Q: Find the probability of randomly selecting 3 students from Utah out of a group of 12 students, 5 of…

A:

Q: In a family of 6 children, what is the probability of getting exactly 5 boys?

A: Given: n=6probability of boy p=0.5probability of girl q=0.5 The probability of getting exactly 5…

Q: In a small private school, 3 students are randomly selected from 11 available students. What is the…

A: Assume that all the 11 available students have different ages. S ne the sample space of selecting 3…

Q: A physician said that 42 percent of his patients have allergic reaction to antihistamine. What is…

A:

Q: In a small private school, 5 students are randomly selected from 12 available students. What is the…

A: According to the combination rule, if r distinct items are to be chosen from n items without…

Q: Find the probability that a randomly selected student was male given that the student earned a

A:

Q: In a recent survey, it was found that the median income of families in country A was $58,000. What…

A: Let X denote the income of families in country A. Given that median of X is 58000

Q: In a recent survey, it was found that the median income of families in country A was $57,700. What…

A: Median: Median is the middle value of the observations in the distribution when the data values are…

Q: . Give the probability distribution of the possible outcomes

A: here given for coin , p(H) =2p(T) coin is rolled 3 times

Q: The proportion of all customers at Pizza Hut who eat on-site is 75 percent. In a sample of 100…

A: Given that  n=100 , p=25%=0.25  , q=1-p=1-0.25=0.75 σp=√(p(1-p)/n)=√((0.25*0.75)/100)…

Q: Find the probability distribution for the number of dance collections when three collections are…

A: Given that, three collections are selected at random from a dance collection consisting of three Hip…

Q: A grocery store had 10 cartons of milk, 2 of which are strawberry flavored. If you are going to buy…

A: Given A grocery store had 10 cartons of milk, 2 of which are strawberry flavored.  If you are going…

Q: At a particular restaurant, 56% of all customers order an appetizer and 42% of all customers order…

A:

Q: Given a standard deck of fifty-two playing cards (no jokers and Aces high), find the probability of…

A: Total face card in a deck of fifty-two playing cards = 12

Q: A high school choir has 42 members, of which 21 are tenors. What is the probability that a randomly…

A: We have given that,  Total number of members = 42 Total number of tenors = 21 Then,

Q: in a box of pens and pencils, the probability of randomly choosing a sharpened pencil is 0.54 and…

A:

Q: If Stephen Curry made 272 3pt shots and attempted to make 600 shots what would be the probability?

A: We have given that Favourable outcomes = 272 Total outcomes = 600  Probability = favourable…

Q: A basketball player has a free throw percentage of 93%. What is the probability she misses at least…

A: The probability of she misses at least one of his next 27 free throws is obtained below:Let X be the…

Q: In a small private​ school, 4 students are randomly selected from 14 available students. What is the…

A: Solution: Total number of available students n = 14 r =4

Q: In the winter, guests who visit Yosemite National Park like to stay at an overnight lodge in the…

A: From the provided information, Guests who visit Yosemite National Park like to stay at an overnight…

Q: Of 100 patients in a hospital with a certain disease, ten are chosen to undergo a drug treatment…

A: Let us define some events A : a patient undergoes drug treatment. B : a patient does not undergo…

Q: Sixty-five percent of men consider themselves knowledgeable football fans. If 10 men are randomly​…

A:

Q: A convenience store estimated that 22% of its customers come in to buy milk. What is the probability…

A:

Q: In a family with 4 children, excluding multiple births, what is the probability of having exactly 2…

A: Given data, n=4 Let probability of getting a girl=0.5 Let X be event of having a girl P(X=2)=?

Q: In a small private school, 5 students are randomly selected from 14 available students. What is the…

A: Given that, 5 students are randomly selected from 14 available students.Here, we can use binomial…

Q: The US population is 13% African American.  If you were to take a SRS of 500 Americans, what is the…

A: It is given that the sample size n is 500 and p hat = 0.13.

Q: A coin is tossed six times. What is the probability of obtaining four or more heads ?

A:

Q: According to government data, the probability that an adult was never in a museum is 15%. In a…

A: It is given that n = 10 and p = 0.15.

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.