1.It has been found that 1 out of every 10 visitors to a museum buys something from the gift shop. If we randomly select a sample of 12 visitors to the museum, what is the probability that no more than three of the visitors will buy something from the gift shop? Interpret your answer.

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: An interview with 20 people revealed that 8 of the 10 women and 5 of the 10 men preferred drinking…

A: let us define a random event E. The probability of occurring of the event, i.e P(E)=Favorable number…

Q: Once a woman won​ $1 million in a​ scratch-off game from a lottery. Some years​ later, she won​ $1…

A: Let A be the win in first game Let B be the win in second game

Q: In 2014, approximately 13% of nonelderly Americans adults had no health insurance. Suppose that a…

A: Given: Proportion of American adults having no health insurance, p=0.13 Sample size, n=400

Q: Once a woman won​ $1 million in a​ scratch-off game from a lottery. Some years​ later, she won​ $1…

A: a. P(winning in 1st game )×Pwinning in 2nd  game=14200000×1705600=3.374365619×10-13

Q: b. If one capsule is randomly selected from the daily production, what is the probability that it is…

A: Given data is    Good  Defective Total A 40 35 75 B 35 15 50 C 45 30 75 Total 120 80 200

Q: Four out of 10 new cars are both foreign and need repair within 2 years. It is known that 7 out of…

A: Given that, Four out of 10 new cars are both foreign and need repair within 2 years. It is known…

Q: On any given work day, Lillian notices that as she's driving to school, she is first stopped by a…

A: Given that, Probability that Lillian is stopped by a red light PR = 0.8  Probability that she is…

Q: a. If the person is picked at random from this group, find the probability that the person is a…

A: Education Male Female total Elementary 38 45     83 Secondary 28 50 78 College 22 17 39…

Q: Once a woman won​ $1 million in a​ scratch-off game from a lottery. Some years​ later, she won​ $1…

A: The number of participant in first lottery is 4.2 millions. The number of participant in second…

Q: 4) According to a recent study, 1 in every 8 women has been a victim of domestic abuse at some point…

A: Given, no of women= 25 1 in every 8 women is abused, therefore p=1/8 = 0.125 Let X be the random…

Q: Thirty percent of the people called agree to participate in a brief telephone survey. In a random…

A: Let X be a random variable follows Binomial Distribution then pmf of X is  P(x)=nCr px (1-p)n-x ,…

Q: It was revealed that 5% of all automobiles in a city did not pass inspection. Of the next ten…

A:

Q: i. Suppose in a district grade 1 through grade 5, 60 percent of the population favor a particular…

A: we are suppose to answer three sub parts .

Q: Q: If 5% of the people are carriers of a certain disease and 10% of them are young, what is the…

A: Given: % of people that are carriers = 5% % of people that are young = 10%

Q: A particular telephone number is used to receive both voice calls and fax messages. Suppose that 20%…

A: A particular telephone number is used to receive both voice calls and fax messages. Suppose that 20%…

Q: From a prior national study, we are able to infer that the probability of a high school student…

A: Probability of a senior from Tom River  going to college (p) = 0.6 (since all of their parents have…

Q: The everlasting light bulb company produces light bulbs, which are packaged in boxes of 20 for…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: A particular telephone number is used to receive both voice calls and fax messages. Suppose that 20%…

A:

Q: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

A:

Q: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

A: Given: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

Q: USA Today reported that approximately 25% of all state prison inmates released on parole become…

A:

Q: A customer from Cavallaro's Fruit Stand picks a sample of 4 oranges at random from a crate…

A: Let us denote X=the number of rotten orangesWe have to find P(X≥1)=1-P(X=0)Given that there are 80…

Q: 3. According to a July, 1999, article in the New York Times, venture capitalists had this rule of…

A: Solution

Q: In a certain year, 27.6% of all light vehicles were light trucks, 27.6% were SUVs, and 44.8% were…

A: The probability that the victim of a deadly side-impact accident was driving an SUV is obtained…

Q: It is generally believed that nearsightedness affects about 12% of all children (p = 0.12).  A…

A: Consider that p is population proportion of kindergarteners, who will be nearsighted.

Q: A bank has the following data on the gender and maritial status of 200 customers. Based on the given…

A: (a)   Obtain the probability of finding a single female customer.   The probability of finding a…

Q: It has been found that 2 out of every 10 people who visit a local store purchase milk. If we…

A: Given that 2 out of every 10 people who visit a local store purchase milk.  So the probability that…

Q: A box in a supply room contains 18 compact fluorescent lightbulbs, of which 6 are rated 13-watt, 7…

A: Dear students as per guidelines we answer the first three subparts only.

Q: It has been found that 2 out of every 10 people who visit a local store purchase milk. If we…

A: Given: n=13 p=210=0.2

Q: a. Of two customers selected, what is the probability that both will be on a business trip? (Round…

A: Solution: a) The probability that two selected customers will be on business trip = (28/62) *…

Q: An instructor who taught two sections of engineering statistics last term, the first with 20…

A: From the given information, Consider, X be the discrete random variable. Total (N) =50 Second…

Q: On average, the drive-up window at Dann's Doughnuts serves 16 customers between 3:00pm and 4:00pm.…

A:

Q: It is a well-established fact that 40% of people are scared of squirrels. - If we take a SRS of 250…

A: Checking condition to use normal distribution: np=250×0.40=100>10…

Q: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

A:

Q: years old and older were asked how frequently they are in touch with their parents by phone. The…

A: We have given the data of the people who meets there parents in how many time . Formula which is…

Q: a) What is the probability that they received a citation and attended traffic school?  b) What is…

A: here define event receive citation  =C attend traffic school = T p(T) = 0.22 p(C) = 0.20 p(T| C) =…

Q: In a certain year, 28.9% of all light vehicles were light trucks, 28.9% were SUVS, and 42.2% were…

A: Let us denote L=light truck , S=SUV, C=car, D=side impact crash will prove deadly to a driverGiven…

Q: In a recent survey of 25 voters, 17 favor a new city regulation and 8 oppose it. What is the…

A: Explanation of the answer is as follows

Q: Suppose that goats have one gene that codes for color, where A is brown and a is white. The goats…

A: Given Suppose that goats have one gene that codes for color, where A is brown and a is white. The…

Q: Suppose that one third of the cards in a scratch-and-win promotion gives a prize. a) Create a…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A particular telephone number is used to receive both voice calls and fax messages. Suppose that 20%…

A: According to the provided information, Let X be a random variable that denotes the number of…

Q: In the St. Petersburg Community College, 30% of the men and 20% of the women are studying…

A: Let M=a student is menW=a student is womenE=a student is studying…

Q: The Merrilee Brokerage House studied two groups of industries (computers and petroleum) and rated…

A: From the table we see that n(computer and low risk)= 10  n(low risk)=10+15=25

Q: customer from Cavallaro's Fruit Stand picks a sample of 3 oranges at random from a crate containing…

A: From the given information we want to find the probability sample contains one or more rotten…

Q: The table below lists a random sample of 50 speeding tickets on a highway   0-10 mph over limit…

A: 0-10 mph over limit 10-20 mph over limit More than 20 mph over limit Total Male 5…

Q: It is estimated that, during the past year, 28% of all adults visited a therapist and 43% ef all…

A:

Q: According to Chemical Engineering Progress (November 1990), approximately 30% of all pipework…

A:

Q: R. H. Bruskin Associates Market Research found that 40% of Americans do not think that having a…

A: It is an important part of statistics. It is widely used.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.