One environmental group did a study of recycling habits in a California community. It found that 72% of the aluminum cans sold in the area were recycled. (Use the normal approximation. Round your answers to four decimal places.)   (a) If 387 cans are sold today, what is the probability that 300 or more will be recycled? (b) Of the 387 cans sold, what is the probability that between 260 and 300 will be recycled?

Q: From experience, the manager of Kramer's Book Mart knows that 60% of the people who are browsing in…

A: Given,n=10p=0.6q=1-0.6=0.4A random variable X~Binomial(n=10 , p=0.6)P(X=x)=Cx(0.6)x(0.4)10-x    ;…

Q: In a certain year, 27.1% of all light vehicles were light trucks, 27.1% were SUVs, and 45.8% were…

A: Let L denotes light truck, S denotes SUV, C denotes Car and A denotes accident.

Q: The table below shows the results of a survey in which tablet users were asked how often they would…

A: From the given information we find the probability.

Q: Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and…

A: The given values are:Proportion of U.S. adults with high blood pressure, p = 0.3Sample size, n =…

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A:

Q: In manufacturing integrated circuits, the yield of the manufacturing process is the percentage of…

A: The probability that an integrated circuit manufactured by the Ace Electronics Company will be…

Q: Ana has gotten very good at playing the ukulele and would like to open her own music class. She has…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: The following data indicates the prize distribution for a small lottery of 500 tickets conducted at…

A: Total number of lottery tickets are 500. Given that 1 ticket has $1000 prize and 60 tickets have…

Q: What is the probability a randomly selected 30-year-old in 1970 earned more than his or her parents…

A: Given, In 1970,80% of 30-year-olds in a country earned more than their parents did at the age of…

Q: Your company issues flight insurance. You charge $17, and in the event of a plane crash, you will…

A: Given, The probability of a plane crashing on a single trip was 0.00000276. An insurance company…

Q: One environmental group did a study of recycling habits in a California community. It found that 73%…

A: Given,n=383p=0.73mean(μ)=npμ=383×0.73=279.59standard deviation(σ)=np(1-p)σ=383×0.73×(1-0.73)σ=8.6885

Q: A researcher believes that 4%4% of females smoke cigarettes. If the researcher is correct, what is…

A: Where,

Q: In the US, 10.5% of the population is diabetic. What is the probability that in a random sample of…

A: Suppose p is the true proportion of diabetic people in the U.S.

Q: Consider the following scenario. An athlete who uses steroids will test positive with probability…

A: Solution: From the given information,

Q: At a drug rehab center 38% experience depression and 28% experience weight gain. 17% experience…

A: d) Consider two non-null events A and B.

Q: Suppose that 40% of adult Canadians believe that Canada should apply to host the next soccer World…

A: It is given that 40% Canadians believe that Canada should apply to host the next soccer World cup. A…

Q: 8. A recent study of cardiovascular risk factors reported that 30% of adults meet criteria for…

A: (c )   Determine the number of adults that would be expected to meet the criteria for hypertension.…

Q: One environmental group did a study of recycling habits in a California community. It found that 74%…

A: Given, p = 74% = 0.74 n = 385 by using normal approximation to binomial  Mean μ = np = 385 * 0.74μ =…

Q: Help me find the answer to these questions a. What is the probability that exactly 8 said that it…

A: Given Information: 30% said it was cutting recreational driving. 26% said that it was consolidating…

Q: One environmental group did a study of recycling habits in a California community. It found that 75%…

A:

Q: On average, the probability of a child being a boy or a girl is about equal: p(girl) = p(boy) = 0.5.…

A: probably that 3 boys in a family of 3 children

Q: The probability of flu symptoms for a person not receiving any treatment is 0.024. In a clinical…

A: Given information: The probability of flu symptoms for a person not receiving any treatment is…

Q: Apparently, depression significantly increases the risk of developing dementia later in life. In a…

A: The given data is as follows:

Q: If a group of 10 women is selected: What is the probability that at least two women will develop…

A: Answer n = 10p = 10% = 10/100 = 0.101- p = 1-0.10 = 0.90

Q: The table below displays the results of a study investigating the effectiveness of bicycle safety…

A: Answer:- Given data ,  Using formula,  Relative risk = {a/(a+b)}/{c/(c+d)}, where  a= head injury…

Q: 10. 44% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S.…

A: Given: n = 10 , p = 0.44 Let X be the number of U.S. adults who have very little confidence in…

Q: Oxnard Petro Ltd. is buying hurricane insurance for its off-coast oil drilling platform. During the…

A: During the next five years, the probability of total loss of only the above-water superstructure…

Q: The Food Marketing Institute shows that 17% of households spend more than $100 per week on…

A: Given N=800 P=0.17

Q: Maggie is practicing her penalty kicks for her upcoming soccer game. During the practice, she…

A: Sample size, n = 10Probability , p = 65% = 0.65

Q: Meals are often served at a conference. At one conference: 50% went to breakfast 73% went to dinner…

A: According to the given information, we have P(breakfast) = 50%=0.50P(dinner) = 73% = 0.73P(breakfast…