A batch contains electronic devices. 20% of them are defective. 6 devices are randomly selected. What is the probability that at most one of them is defective? Select one: a. 0.2621 b. 0 c. 1 d. 0.3446 e. 0.0655 f. 0.3932

Q: Ten percent of the engines manufactured on an assembly line are defective If engines are randomly…

A: Negative Binomial Distribution: If we have a sequence of trials each having two outcomes, say…

Q: At a coffee shop, the first 100 customers' orders were as follows. Small Medium Large Hot 5 48 22…

A: P ( small | hot ) = probability of getting small coffee given that it is hot coffee. P(Small | Hot)…

Q: Find the probability distribution of the total number of heads obtained in four tosses of a balanced…

A: Let p be the probability of getting head  And X be the number of head  We want to find  (a)…

Q: From a class of 20 boys and 15 girls, a committee of five students will be selected. What is the…

A: Given that  Total students=20+15=35 Boys=20 , Girls=15 5 students are selected  Find  P(Exactly 1…

Q: tallied the number of survivors and missing persons. (a) If we randomly select someone who was a…

A: The table given below ,    Men Women Boys Girls Total Rescued 20 10 7 16 53 Missing 15 13 10…

Q: (d) What is the probability that a random sample of 50 students spends an average of $1450 to $1600…

A: 73. D Let x¯ is defined as the average on-campus housing cost for a semester at university which…

Q: Netflix took a survey of 500 subscribers to determine who likes watching Lucifer, The Witcher, and…

A:

Q: Sixty-five percent of men consider themselves knowledgeable football fans. If 12 men are randomly…

A:

Q: 5) People were asked if they prefer Pepsi or Coke. The results are in the table below. Female Male…

A: ( a ) P( both prefer Pepsi) = ? ( b ) P( Female or Coke ) = ?

Q: Motorists arrive at a Gulf gas station at the rate of two per minute during morning hours. a) What…

A:

Q: A political scientist is analyzing the possible voting outcomes of a proposal. According to polls,…

A: According to the given information, we have The probability that a voter will vote yes is 50% Sample…

Q: Elena asks the students in one of her classes if they have a cat or a dog. Her results are recorded…

A:

Q: C. Assume that in a group of 12 individuals, seven prefer football and five prefer cricket. A random…

A: Given, Total no. of individual N=12. No. of individual who prefer football r=7 No. of individual who…

Q: Sixty-five percent of men consider themselves knowledgeable football fans. If 14 men are randomly…

A: given p=65%=0.65 , n=14  P(X=3)=? X~Bin(n=14, p=,0.65)

Q: Giving a test to a group of students, the grades and gender are summarized below A C Total Male 20…

A: Given, Basic formula for probability: =Number of favourable cases/ Total number of cases

Q: A teacher of a class of 25 students is trying to decide whether her class will play soccer, or…

A:

Q: During a Formula 1 test. 25% of the cars that participated in the test experienced a tire blowout.…

A: Correct answer is  (C) 0.1484

Q: At a coffee shop, the first 100 customers' orders were as follows. Small Medium Large Hot 48 22 Cold…

A:

Q: college students were surveyed to check what they favored between basketball, football or baseball.…

A: Given,   Basket ball Foot ball Base ball Total Male 22 40 15 77 Female 45 12 16 73 Total 67…

Q: How many subjects were included in the study? How many subjects did not use drugs? What is the…

A: The column totals are,   No (Did not use drug) Yes (Did use drug) Total Positive Test…

Q: After giving a test, below is the summary of grades by gender. A B Total Male 18 12 5 35 Female 11 9…

A:

Q: Tyler surveyed 100 randomly selected students to find out their favorite sport to watch on TV. The…

A:

Q: The table below shows the number of survey subjects who have received and not received a speeding…

A: The probability of union of two sets are given as, P(A or B) = P(A) + P(B) – P(A and B).

Q: Given the table: Gender Yes No Maybe Male 0.097 0.135 0.293 Female 0.165 0.159 0.151 What is the…

A: See the handwritten solution

Q: A random sample of 2055 adults was taken, and they were asked if they prefer watching sports,…

A:

Q: It is known the 60% of toddlers have too much screen time. A randome sample of 8 toddlers were…

A: Ans - Given, 60% of toddlers have too much screen time. Using binomial distribution  With parameter…

Q: In a statistical survey, 400 students were asked whether they had made a FLYING FOX.or SWIM. The…

A:

Q: A small tool‑and‑die shop manufactures kneuter valves. A shipment of 1515 valves to a Swedish…

A:

Q: A computer technician notes that 40% of computers fail because of the hard drive. If he repairs many…

A: random variable X number of trials at which first success occurs. X~geometric(p)  where…

Q: A school survey found that 7 out of 30 students walk to school. If two students are selected at…

A:

Q: Find the probability distribution of the total number of heads obtained in four tosses of a balanced…

A: Solution

Q: (a) How many percent of the tubes are classified as A Grade and B Grade respectively? (b) Find the…

A: Air ball trap, X ~ Poisson(1.5)  A grade = no air ball trapped.  B grade = 1 or 2 air balls trapped.

Q: Fifteen percent of the products produced by an industrial robot are known to be defective. A…

A: GivenNo.of products from production run (n)=6p=0.15Let "x"be the number of products selected by the…

Q: A company has 5 full-time employees and 10 part-time employees. The company president randomly…

A:

Q: About 35% of the population have a college degree. If three people are randomly selected, what is…

A: Given,  p = 35% = 0.35 q = 1 - p = 1 - 0.35 = 0.65 Sample size, n = 3 Let X be a random number which…

Q: In a certain country, 47 percent of the population are on a strict diet. In a sample of 20…

A:

Q: In a class of students, the following data table summarizes how many students have a cat or a dog.…

A:

Q: Sixty-five percent of men consider themselves knowledgeable football fans. If 11 men are randomly…

A: Given Sixty-five percent of men consider themselves knowledgeable football fans.  Suppose X be the…

Q: A store manager records sales number for TVs of brands A, B, C, D, and E and listed them in the…

A: Brand  frequency  A 41 B 53 C 39 D 23 E 17 Total 173

Q: (Q5)/(A) If you know that 75% of the students in a college are males, and a random sample of 30…

A:

Q: it is reported that 20 percent of american households use a cell phone exclusively for their…

A: We have to find given probability.

Q: In a certain town, 62% of the residents enjoy riding roller coasters. Alfred takes a sample of 75…

A: Given Data: Using binomial to normal approximation Mean=n*p=0.62*75=46.5 Standard deviation=4.2036…

Q: In a certain Country, 47 percent of the population are on a strict diet. In a sample of 20…

A: It's binomial probability distribution

Q: Democrat Republican Total 31 68 College Degree No College Degree 37 63 69 132 Total 100 100 200 n)…

A: Solution: Given information:   Democrat  Republic  Row Total  College Degree  37 31 68 No…

Q: Fungicides are used to protect seeds in wet environments. To test the effectiveness of a fungicide,…

A:

Q: What is the probability that a female college student from this group chose "housework" as their…

A: What is the probability that a female college student from this group chose "housework" as their…

Q: Risk Management: 80% of people who purchase pet insurance are women. If 9 pet insurance owners are…

A:

Q: The leading brand of powdered milk in the Philippines has a market share of 45%. A sample of 14…

A: Given that  n=14 , p=45%=0.45 , q=1-p=1-0.45=0.55 X~Binomial(n=14,p=0.45) X= Number of leading brand…

Q: a. Find the probability distribution of X, the number (out of the four) that have annual incomes…

A:

Q: Giving a test to a group of students, the grades and gender are summarized below В Total Male 8. 9.…

A: Solution: 1. The given table of data is

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.