An urn contains 2 white balls and 8 red balls. A second urn contains 6 white balls and 4 red balls. An urn is selected, and a ball is randomly drawn from the selected urn. The probability of selecting the first urn is 0.3. If the ball is white, find the probability that the second urn was selected. (Round your answer to three decimal places.) X

Q: what is 63 million Americans under age 15 out of 314 million Americans in 2011?

A: Given, Americans under age 15 = 63 million               Total americans = 314 million

Q: A patient with a high-deductible consumer-driven health plan has met half of the $1,000 annual deduc...

A: The out-of-network physician’s bill is $4,500.Bill substract the deductible still owed that is 4,500...

Q: A local university has 2,815 Hispanic students out of a total of 20,250 students. How many more Hisp...

A: Assumption: The Hispanic population ratio in the country is 17% (approximately).The university has 2...

Q: Finding Probabilities Associated With z-score Values   1)      What is the probability of getting a ...

A: Hey, since there is multiple questions posted, we will answer first three subparts of the first ques...

Q: . Initial diagnosis of a patient’s illness was potentially flu (F), cold (C), or hay fever (H), with...

A: For bayes' theorem, its always better to draw probabilities in tree diagram to visually analyse them...

Q: Inclusions are defects in poured metal caused by contaminants. The number of (large) inclusions in c...

A: Introduction to Poisson distribution:Poisson distribution is most suitable, when the events are “rar...

Q: Edward has to take a six​-question ​multiple-choice quiz in his sociology class. Each question has f...

A: Some characteristics of binomial distribution:Each trial has exactly two possible outcomes.There are...

Q: If A and B are independent events, show that A' and B are also independent. [Hint: First estabblish ...

A: Independent events:If the events A and B are said to be independent then P (A and B) = P (A) × P (B)...

Q: Seven boys and five girls are going to a county fair to ride the teacup ride. Each teacup seats four...

A: Total number of possible arrangements:There are 12 seats in the ride. The number of people going for...

Q: Is the following argument valid or invalid? If it’s valid, rewrite the same argument symbolically(p,...

A: Given If you are Patrick Star, then this is your ID.     This ID was in this wallet.If this ID was i...

Q: Find the z value such that 78% of the standard normal curve lies between −z and z. (Round your answe...

A: As it is given that 78% of the standard normal curve lies between –z and z that means 22% (100% - 78...

Q: Three guests were staying at a hotel. Combined, their room was $42 dollars. Later, the manger realiz...

A: Initially…Initially, the 3 guests together paid $42. So, the total amount of money available is $42....

Q: Use the Venn diagram below to find the conditional probabilities. E 0.0.150.15 0.6 (a) P(EC n FI F) ...

A:

Q: A bag contains 4 red balls and 4 green balls. You plan to select 3 balls at random. Determine the pr...

A: It is provided that a bag contains 4 Red and 4 Green balls.Thus, the total number of balls is 8 in t...

Q: The following problems refer to strings in A to Z.  (a) how many diffrent four letter strings are th...

A: In this question, we have to form a four letter strings using the letters A to Z.Since in this quest...

Q: A jar contains 3 red , 5 green , 7 blue and 3 yellow marbles . If a single marble is chosen at rando...

A: Total number of marbles in the jar are 18, where there are 3 red,  5 green , 7 blue and 3 yellow mar...

Q: A recent study reported that the prevalence of hyperlipidemia (defined as total cholesterol over 200...

A: Given:Probability that the prevalence of hyperlipidaemia in children 2–6 years of age = 0.30No. of c...

Q: Use Bayes Theorem to calculate the probabilities: The enrollment in a certain course is 10% first ye...

A: Given probability of first year students enrolment in course P(F) = 0.10probability of sophmores enr...

Q: A computer system allows user IDs that are six characters long. If only alphanumeric characters are ...

A: We have a computer system that allows user IDs which are six characters long,And, there is only alph...

Q: A Driver keeps goes through 3 intersections. The probabibilty of hitting a red light at each are 0.2...

A: Let xi denotes the probability of hitting red light in ith intersectionsGiven date P(X1) = 0.2P(X2) ...

Q: An urn contains seven red balls, seven white balls, and seven blue balls and a sample of five balls ...

A: Given total red balls = 7Total white balls = 7Total blue balls = 7A sample of five balls is drawn at...

Q: For normally distributed variables, approximately what percentage of values fall within two standard...

A: Given a normally distributed variable X. Let us assume its mean is µ and standard deviation σ.Accord...

Q: in cribbage the card game, I hand of six cards is dealt from a normal deck of 52 cards. What is the ...

A: Gven that a hand of six cards is dealt from deck of 52 cards.We need probability that we have all fi...

Q: For the experiment of drawing a single card from a standard​ 52-card deck, find ​(a) the probability...

A: Part (a):A standard deck of 52 cards has 4 suits of 13 cards each. In each of the four suits (diamon...

Q: How much do wild mountain lions weigh? Adult wild mountain lions (18 months or older) captured and r...

A: (a) Computation of sample mean and sample standard deviation:The number of samples, n = 6. Using cal...

Q: A single, six-sided die is rolled. Find the probability of rolling an even number or a number less t...

A: Addition rule of probability:Addition rule of probability indicates the happening either of the even...

Q: At one point in a Girl Scout cookie sales drive, region C had sold 1500 boxes of cookies, and region...

A: GivenTotal number of boxes of cookies sold by region C = 1500Total number of boxes of cookies sold b...

Q: A pet store has 12 ​puppies, including 5 ​poodles, 2 ​terriers, and 5 retrievers. If Rebecka and​ Aa...

A: Explanation:There are total 12 puppies. When there is no constraint, Rebecka can select any of the 1...

Q: Suppose, household color TVs are replaced at an average age of μ = 8.4 years after purchase, and the...

A: Note:Hi! Thank you for posting the question. Since your question has more than 3 parts, we have solv...

Q: I am a positive integer. All my digits are odd. I am equal to the sum of the cubes of my digits.  I ...

A: There are two possible answers for the given situation.If it is a single digit number, then it shoul...

Q: The table gives​ Josh's probabilities of scoring in various ranges on a​ par-70 course. In a given​ ...

A: Explanation:The probability that X is less than 90 is the same as the probability that X takes a val...

Q: Score on last attempt:   0.3 out of 1 (parts:  0.25/0.25,  0/0.25,  0/0.25,  0/0.25) Score in gradeb...

A: Given Data

Q: The probability density function of the time to failure of an electronic component in a copier (in h...

A: Computing the probability that a component fails in the interval from 465 to 1,943 hours:The random ...

Q: The flow in a river can be modeled as a log-normal distribution. From the data, it was estimated tha...

A: Introduction:According to the question, X follows the log-normal distribution. P (X > 850) = 0.5;...

Q: Write (in English, not symbols) the converse, inverse, and contrapositive of the followingstatement ...

A: Given "If you’re Scooby-Doo and you come through, then you’re gonna have yourself a Scooby Snack."If...

Q: The table shows the​ distribution, by age and​ gender, of 30.1 million people who live alone in a ce...

A: Conditional probability of two events:The conditional probability is the probability of one event gi...

Q: A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probabili...

A: Number of possible ways to draw 2 balls out of 7 balls:There are 2 red balls, 3 green balls, and 2 b...

Q: P(56<X<68) assume that the random variable X is normally distributed with mean is 50 and stand...

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the ...

Q: An urn contains five red balls and four white balls.  A sample of two balls is selected at random fr...

A: Concept of probability:Probability deals with the likelihood of occurrence of a given event. The pro...

Q: A​ single, six-sided die is rolled. Find the probability of rolling an even number or a number less ...

A:  For any event A and the sample space S, the probability can be found as,

Q: The flow in a river can be modeled as a log-normal distribution. From the data, it was estimated tha...

A: Let X be the flow in a river which follows log normal distribution.It is provided that, P(X > 821...

Q: 14. Step 1: Global warming may be due to increased concentrations of greenhouse gases such as carbon...

A: Introduction:In this case, the response variable is the carbon dioxide concentration, while the pred...

Q: If a single die is rolled seven times, what is the probability it lands on 3 on the second, third, f...

A: A single die is rolled seven times.Probability that a die rolled will land on three = 1/6Probability...

Q: A total of 20 children, 14 men, and 12 women entered a raffle drawing. If the winner is randomly sel...

A: Total of men and women is given by 14+12=26Total of children, men and women is given by 20+14+12=46H...

Q: According to national data, 20.7% of burglaries are cleared with arrests. A new detective is assigne...

A: In this question we are going to use Binomial Probability Distribution to get the probability. We ar...

Q: The legislature of Puerto rico consits of a 27 member senate and a 51 member house of representitive...

A: Given:(a)There are 27+51=78 members of the legislature.Now, we have find the number of ways to choos...

Q: The median age at first marriage of US Woman (26.1 years) is what percentage less than the median ag...

A: We have been given the median age of woman and men and we have to find median age of woman is what %...

Q: Suppose that for a given animal, the length of pregnancy from conception to birth varies according t...

A: Introduction:Let X denote the length of pregnancy from conception of a randomly chosen animal of the...

Q: Of the plays attributed to a playwright, 17 are comedies, 16 are tragedies, and 20 are histories. If...

A: Plays attributed to playwright are as follows:17 are comedies , 16 are tragedies and 20 are historie...

Q: Assume that a particular professional baseball team has 10 ​pitchers, 5 ​infielders, and 10 other pl...

A: TO work out the required probability , using counting principles