A sample of 4 different calculators is randomly selected from a group containing 10 that are defective and 40 that have no defects. What is the probability that at least one of the calculators is defective?

Q: sample of n = 4 scores is selected from a population with μ  = 100 and s = 20. If the sample mean is…

A: Given information: n = 4  μ  = 100  s = 20.  sample mean is M =110

Q: There are three urns that each contain 10 balls. The first contains 2 white balls and 8 red balls,…

A: Given Information: There are three urns that each contain 10 balls. The first urn contains 2 white…

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: In a sample of 1000 U.S adults, 199 think that most celebrities are good role models. Two U.S adults…

A:

Q: 25% of the young people interviewed in a city have a relative with diabetes. If 22 of these young…

A: Given data, n=22 p=25%=0.25 P(X≥5)=?

Q: A survey shows that about 65% of all respondents chose to have dogs over cats. Suppose that 15…

A:

Q: About 5% of employed adults in the United States held multiple jobs. A random sample of 60 employed…

A: We have given that  Sample size n =61 Population proportion p=5%=0.05

Q: An Insurance company study shows that 45% of U.S. adults have high blood pressure. Suppose 6 U.S.…

A: Let p be the probability of U.S. adults have high blood pressure  n be the sample  size Let X be the…

Q: A survey showed that 74% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…

A:

Q: If the probability That a randomly selected murder resulted from a rifle or shotgun is 0.061 then if…

A: From the provided information,The probability that a randomly selected murder resulted from a rifle…

Q: In a Roulette game, a ball falls onto a spinning wheel and randomly ends up in one of 37 pockets.…

A: Given the experiment of the Roulette game, a ball falls onto a spinning wheel and randomly ends up…

Q: A sample of 4 different calculators is randomly selected from a group containing 18 that are…

A: Hypergeometric Distribution: A discrete random variable X is said to follow the Hypergeometric…

Q: A jar contains green wrapped candies and yellow wrapped candies.  A person selects two wrapped…

A:

Q: Subjects were randomly chosen for a clinical trial consisting of 87 women and 88 men. 17 of the…

A:

Q: A recent study suggested that 70% of all eligible voters will vote in the next presidential…

A: Given Information: 70% of all eligible voters will vote in the next presidential election i.e., p =…

Q: A person with tuberculosis is given a chest​ x-ray. Four tuberculosis​ x-ray specialists examine…

A: It is given that p=0.89 and n=4.

Q: Suppose a math class contains 31 students, 19 females (two of whom speak French) and 12 males (three…

A: We have given that a math class contain 31 students, 19 females( 2 speaks French) and 12 males(3…

Q: A sample of 4 different calculators is randomly selected from a group containing 16 that are…

A: The objective of this question is to find the probability that at least one of the calculators is…

Q: According to a survey, 78% of the students at Delta own a calculator. A group of 18 students is…

A: The probability that a student at DElta owns a calculator: p = 0.78   To find: When a group of 18…

Q: Suppose a math class contains 47 students, 24 females (four of whom speak French) and 23 males (six…

A:

Q: Suppose that the prevalence of a certain type of tree allergy is 0.32 in the general population. If…

A: The objective of this question is to find the probability that exactly 32 out of 100 people will…

Q: Suppose that 15% of a population is red-headed, and 10% of the same population is left-handed. If…

A: It is known that, if two events A and B are independent, then P(A and B) = P(A)P(B).

Q: A farmer said that 2/3 of his apple trees were attacked by fruit flies. If the inspection is carried…

A:

Q: If you call a randomly selected person, there is a 1/10 chance that they are left-handed. If you…

A: The probability of chance that the randomly selected person is left-handed is 0.1.

Q: A certain type of rocket has 5 ignitors which act independently of the others. Each ignitor has a 5%…

A: Let X denotes the number of ignitor fails which follows binomial distribution with sample size 5 and…

Q: Research has shown that approximately 1 woman in 700 carries a mutation of a particular gene. About…

A: We are given,Research has shown that approximately 1 woman in 700 carries a mutation of a particular…

Q: Suppose a math class contains 42 students, 18 females (six of whom speak French) and 24 males (four…

A: given that , total students =42 , female students = 18, male students = 24. Female students who can…

Q: Suppose that a company owns 500 computers. Each computer has an 11% probability of not working.…

A: It is given that n =19.

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

A:

Q: For next year, 47% of veterans will buy a single family home. If we pick a random sample of 5…

A: Given Information: n = 5 p = 47% = 0.47 To find out the probability that at least 4 veterans will…

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.