What is the probability that in a random sample of 510 voters, less than 49.7% say they will vote for the incumbent? Probability =

Q: The average percentage of failure in a certain examination is 40. What is the probability that out…

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Q: pollutants, but results in false positives for 18% of cars that emit quantity considered normal.…

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Q: The probability that an adult possesses a credit card is .35. A researcher selects two adults at…

A: Given information- We have given the probability that an adult possesses a credit card p = 0.35 The…

Q: Smoking leads to significant health problems, 20% of adults in Europe smoke. Consider a group of 250…

A: X has binomial distribution. X~B(n,p) Where n=250 and p=0.20 np and np(1-p) is greater than 5. then…

Q: Fifty-six percent of U S adults say they intend to get a flu shot. You randomly select 10 U.S.…

A: It is given that sample size n =10 and probability of consumer U.S. adults say they intend to get a…

Q: The probability that an adult possesses a credit card is .35. A researcher selects three adults at…

A: Givenp=0.35n=3x~Binomial(n=3,p=0.35)P(X=x)=Cxnpx(1-p)n-x    ; x=0,1....n

Q: The weekly average number of airplane crashes is 5. Whatis the probability that there will be (a

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Q: What is the probability that the player will require more than three shot attempts to make a…

A: Let p be the probability of making a midrange short. Given that p = 40% = 0.40 Let X denote the…

Q: pproximately 7% of the population has the O- blood-type. If you drew a random and independent sample…

A: p = 0.07 n = 2065

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Given : The proportion of eligible voters in the next election who will vote for the incumbent is…

Q: ohn surfs the website on a regular basis. Suppose the time he spent surfing the website per day is…

A: Given that  The time he spent surfing the website per day is normally distributed. Mean (µ ) = 8…

Q: Forty percent of the students at a local college belong to a club and 50% work part time. 5% of the…

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Q: The probability that an egg in a retail package is cracked or broken is 0.025. Find the…

A: Given :  The prob. that an egg in a retail package is cracked or broken is 0.025 i.e Proportion (p)…

Q: In a statistics class of 42 students, there were 11 men and 31 women. Six of the men and seven of…

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Q: . What is the probability that the amount of liquid hand soap consumed in a month per secondary…

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Q: A diabetes test is positive 85% of the time when the patient has diabetes and negative 95% of the…

A: Given data:- Diabetes test is positive 85% of the time when the patient has diabetes  diabetes test…

Q: A bag contains 2 red marbles and 5 white marbles. What is the probability of drawing two red marbles…

A: What is the probability of drawing two red marbles at random if the first marble drawn is not…

Q: The probability of a radar station detecting an enemy plane is 0.55. If 60 stations are in use, what…

A: The binomial distribution is given by,   P(X=x) = Cxn . px . qn-x ; x = 0, 1, 2, ....…

Q: selects 10 chips from the box of 95 and tests them. What is the probability of obtaining 2 defective…

A: Here  This is without replacement model

Q: An automated assembly line produces 43,500 parts per duty cycle. The probability that a randomly…

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Q: etermine the probability of having 2 girls and 3 boys in a 5​-child family assuming boys and girls…

A: Here, Number of boys=3 Number of girls=2 Total children n=5  assuming boys and girls are equally…

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

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Q: Assume that 30 percent of students have taken calculus in high school. Of those who have taken…

A: Let define the events: C = students taken calculus in high school C=students do not taken calculus…

Q: According to a survey, the probability that a family owns two cars if its annual income is greater…

A: Obtain the probability that a family has two cars and an income over $35,000 a year. The probability…

Q: Suppose the probability of purchasing a defective smart phone is 0.04. What is the probability of…

A: Introduction: Denote X as the number of defective smart phones obtained in a purchase of 20 smart…

Q: What is the probability that the antidote will be effective on at least 5 people? b) Calculate the…

A: The antidote called hydroxocobalamin, which is used to treat fire smoke poisoning, has a two-thirds…

Q: High blood pressure has been identified as a risk factor for heart attacks and strokes. The National…

A: Given: Proportion, p = 0.3 Sample size, n = 80 μ(p)=p=0.3 Standard deviation, σ= p…

Q: The probability that a police officer is hiding behind a billboard next to the highway is 0.06. The…

A: Conditional probability:   Let A and B be two events, then the condition probability for event A,…

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Solution: From the given information, n = 410 and p = 0.527.

Q: For An observer stands at an overpass of a highway and counts the vehicles that pass by. He stops…

A: Given problem Given that   For An observer stands at an overpass of a highway and counts the…

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

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Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A: Givenproportion(p)=0.634sample size(n)=430Mean(μp^)=p=0.634standard…

Q: . The recovery rate for a disease is 0.4. In the study conducted on 30 randomly selected patients…

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Q: A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung cancer patients.…

A: Given Data Probability of success,p = 0.75 Probability of failure,q=(1- 0.75 )= 0.25…

Q: Breast cancer occurs in 2% of all American women. Mammograms used to detect breast cancer typically…

A:

Q: Golden Years Insurance company estimates the probability that a randomly selected male senior…

A: In here we've the details of senior citizens own supplemental health insurance from Golden Years…

Q: Experience has shown that 15% of Tshwane municipal rates bills contain an estimated amount for…

A: Given, 15 % of Tshwane municipal rates bills contain an estimated amount for electricity usage. i.e.…

Q: The monthly incidence of necrotizing fasciitis in the U.S. is 50 cases. The population of the U.S.…

A: Solution: It is given that the monthly incidence of necrotizing fasciitis in the U.S. is 50 cases.…

Q: A poll showed that 71.2% of Americans say they believe that some psychics can help solve murder…

A: From the given information, it is observed that the probability of Americans who they believe that…

Q: Apple produces about 300 iPads every hour at their factory in Silicon Valley. On average, about 2.5…

A:

Q: A survey by Altgeld Travel Magazine found that 85% of airline passengers prefer to sleep during…

A: Solution: 6. a. Let X be the number of passenger prefer to sleep during their flights and n be the…

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Given information- The proportion of eligible voters, p = 0.539 Sample size, n = 430 Since we used…

Q: 62% of Armenian students own a personal computer. What is the probability that the proportion of…

A: the pdf of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: The probability of passing the bar exam in a certain state is 2/3. If 10 people passed the test at a…

A: It is given that probability of passing the bar exam in a certain state is 2/3. Therefore, the…

Q: The probability of passing a class is 70%. What is the probability that 17 out of 20 students pass…

A: From the given information we want to find the probability that 17 out of 20 students pass the…

Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A:

Q: historical data, your manager believes that 25% of the company's orders come from first-time…

A: Calculate the z test statistic as follows: z=p^-pp(1-p)/n=0.31-0.250.251-0.2579=1.23 The probability…

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A:

Q: The probability that a car will crash in a year is 5.5%. What is the probability that out of 100…

A: Let x follows binomial distribution with parameters n = 100 and p = 0.055   The pdf of binomial…

Q: The probability that a referee making a serious mistake in a match is 0.4. What is the probability…

A: Given,n=3p=0.4X~Binomial(n=3 , p=0.4)P(X=x)=cxn px (1-p)n-x  ; x=0,1,2....n