In Canada, there are approximately 106 boys born for every 100 girls (this is only approximate, but let’s assume that it is exact). If a family in Canada has 5 children, what is the probability that they have at least one boy and at least one girl? State your answer as a decimal rounded to four decimal places. Hint: think carefully about what the complement of this event is.

Q: (a) What is the probability that a thickness is greater than 1.42 cm? (b) What thickness is exceeded…

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Q: What is the probability that a randomly chosen American does not have type O blood?

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Q: The Denver Post reported that a recent Audit of Los Angeles 911 calls showed that 85% were not…

A: Assuming X, a random variable, and X~B(n,p) the pmf is P(X=x)=nCxpxq(n-x) ; x=0,1,2...np=probability…

Q: Suppose that 66% of the people who inquire about investments at a certain brokerage firm end up…

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Q: For short domestic flights, an airline has three different choices on its snack menupretzels, potato…

A: A random variable follows the binomial distribution, if the following conditions are satisfied.…

Q: Given that A and B are two independent events, find their joint probability for the following. P(A)…

A: Given: P(A) = 0.19 P(B) = 0.65

Q: The table is attached below!! 1. What is the probability that a randomly selected resident is a…

A: Given data is   Men Women Total Non-smoker 30 10 40 smoker 40 20 60 Total 70 30 100

Q: At Seaside Burgers, 14 of the last 20 customers wanted cheese on their burgers. What is the…

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Q: A national survey found that 46% of adults ages 25-29 had only a cell phone and no landline. Suppose…

A: Givenp=0.46n=4Let "x" be the no.of adults have only a cell phones and no landline…

Q: In a certain college, 20% of the physics majors belong to ethnic minorities. If 10 students selected…

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Q: An aircraft seam requires 27 rivets. The seam will have to be reworked if any of these rivets is…

A: Let p be the probability that the rivet is defective

Q: In a STA215 class there are four students who are sometimes late from class. P(Matt on time)=.9,…

A: Given ,  P(Matt on time)=0.9 P(Zach on time)=0.8 P(Greg on time)=0.6 P(Alex on time)=0.5

Q: If we roll an ordinary, six-sided die eight times in a row, what is the probability that at least…

A: Given: Number of times the die rolled is, n=8. The objective is to find the probability of at…

Q: It is estimated that 25% of all California adults are college graduates and that 31% of California…

A: From the provided information, 25% of all California adults are college graduates and 31% of…

Q: A coin is flipped three times. If heads appears exaclty once, what is the probability that it…

A: The possible outcomes when a coin is flipped three times is,

Q: A particular library has 58 visitors. When the visitors were asked how many books they read that…

A: Solution: From the given information, 20 visitors said they read one book, 22 said they read three…

Q: It has been found from experience that an average of four customers use the drive-through facility…

A: Given that an average of 4 customers come in a 10-minute period. That means an average of 2…

Q: Inside the wrapper of a certain candy bar, there is a 1 in 10 chance to win a prize. Suppose you buy…

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Q: If you buy a lottery ticket in 50 lotteries, in each of which your chance of winning a prize is…

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Q: If a person draws five cards from a standard deck (without replacing them), what is the probability…

A: The standard deck contains 52 cards in which 12 face cards. Number of ways 5 cards are drawn from a…

Q: An aircraft seam requires 21 rivets. The seam will have to be reworked if any of these rivets is…

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Q: According to a survey, 67% of the students at Delta own a calculator. A group of 9 students is…

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Q: A sports commentator claims that 45% of all football injuries are knee injuries. If this claim is…

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Q: d. What is the probability that her trip will take exactly 50 minutes?

A: here given ,  The time it takes for Anna to travel between her home and her job is uniformly…

Q: In country X, 41% of the adult population is nearsighted. If four people from this country are…

A: Solution: Let Y be the number of people are nearsighted and n be the sample number of people. From…

Q: Let A be the event of rolling a die and getting 6, and let B be the event of tossing a coin and…

A: The events are given by A : getting a 6 on rolling a die. B : getting a head on tossing a coin.

Q: Of the last 230 new hires at a company, 220 had college degrees and 140 had prior experience. Only…

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Q: Given that every ninth person in line will get a coupon for a free box of popcorn at the movies,…

A: Given that every ninth person in line will get a coupon for a free box of popcorn at the movies.…

Q: Is the following statement true or false? A ten sided die is rolled. The probability that a 5 is…

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Q: Suppose that of the 300 seniors who graduated from Schwarzchild High School last spring, some have…

A: Given: 300 seniors who graduated from Schwarzchild High School. C and nor J = 30 C and J = 45 J and…

Q: You think a coin is biased, and you are interested in finding out if it is. What is the probability…

A: Consider a side of the fair coin is heads. Define the random variable x as the number of heads.…

Q: Based on the table that is attached below, what is the probability that a randomly selected man…

A: Given a data table using the table we have to find what is the probability that a randomly selected…

Q: Here is the probability model for the blood type of a randomly chosen person in the United States.…

A: In question, We have given a probability model for the blood type of a randomly choosen person in…

Q: An aircraft seam requires 20 rivets. The seam will have to be reworked if any of these rivets is…

A: Given information: Total number of rivets required by an aircraft seam = 20 If any of the above 20…

Q: An aircraft seam requires 24 rivets. The seam will have to be reworked if any of these rivets is…

A:

Q: A recent survey by a market research company found that 56% of all US households have internet…

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Q: Here is the probability model for the blood type of a randomly chosen person in the United St Blood…

A: Note: Please repost 2nd question as i can answer only 1 question as per my policy.   Given data,…

Q: a. What is the probability that is within $500 of the population mean if a sample of size 60 is used…

A: here given , for population mean = 71300 standard deviation  = 5000   here sample size used in both…

Q: Given that there is a 0.81 probability that a randomly selected adult knows what Twitter Find the…

A: It is given that the sample size n is 4, probability of randomly selected adult knows that Twitter…

Q: There are five flights daily from Pittsburgh via US Airways into the Bradford Regional Airport in…

A: Given number of lights = n = 5 Probability that any flight arrives late = 0.2 Let X denotes the…

Q: A die has been “loaded” so that the probability of rolling any even number is 2/9 and the…

A: Given data:     The probability of getting an even number is: P(E)=2/9. The probability of getting…

Q: Researchers at a reputable university and a reputable health organization claim that approximately…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: In a large on-the-job training program, half of the participants are female and half are male. In a…

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Q: An arcraft seam requires 25 rivets. the seam will have to be reworked if any of these rivets is…

A: To work out the required probabilities

Q: A coin is tossed eight times. What is the probability that the outcome will be eight heads, given…

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Q: Prior to airport construction, a survey was conducted if the residents in a certain barangay are in…

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Q: The Honolulu Advertiser states that in Honolulu there was an average of 886 burglaries per 100,000…

A: A binomial distribution is used when there are n fixed number of independent trials with 2 possible…

Q: What probability should be assigned to the event that at least one ball has an odd number?

A: The box contains the balls numbered from 1 to 6, that is B1,B2, B3, B4, B5, B6 , that is there are 6…

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.