There are m distinct balls in a bag. We pick one ball uniformly at random at a time, we place the ball back after recording it. We will stop the picking if and only if each ball has been recorded at least once, find the expectation of the number of picks?

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

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

Q: You order 9 burritos to go from a Mexican restaurant, 4 with hot peppers and 5 without. However, the...

A: It is a fact of probability . It is widely used in statistics .

Q: 5) Families with 5 children are randomly selected, find the expected number of boys a family might h...

A: (5) The no.of children in a family is, n=5 The probability of select boy child is, p=0.5 Let the ran...

Q: What is the average? 3 4 5 8

A: It is a fact of average.  It is always useful in all sorts of studies.

Q: 14. If there are 31 flavors of ice cream How many different ways can you choose 2 scoops if you can ...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: The mean weight of newborn infants at a community hospital is 6.6 pounds. A sample of seven infants ...

A: Sample points are 9.0,7.3,6.0,8.8,6.8,8.4,6.6. Sample size = n = 7.  

Q: You are given 4 to 3 odds against tossing three tails with three coins, meaning you win $4 if you su...

A: 4 to 3 odds against tossing three tails with three​ coins P[ tossing three tails with three​ coins ]...

Q: A random sample of 820 households from a city, Stats City, were surveyed. From the statistical techn...

A: Given, A random sample of 820 households from a city, Stats City, were surveyed. From the statistica...

Q: the life span of computer manufactured by xyz company is normally distributed with mean 8 years and ...

A:

Q: Given that P(E) = 0.8, what must be true about the event E?

A: P(E) = 0.8

Q: Page 437 #25a The following table gives the percent of a country's population having each of the eig...

A: The conditional probability formula is given below: PA|B=PA and BPB There are total (6.3+1.5+0.6+6.6...

Q: A provost team conducted a comparative study about admission rates among two groups. They selected n...

A: (1) Critical value:  By using z tables, the critical value of z at 5% level of significance for two ...

Q: 1000 fishes were caught, tagged and released back into the water. A month later, out of 500 fishes,6...

A: Let there are x fishes in the lake. Among them 1000 fishes were caught and tagged.   After a month o...

Q: The probability of finding n photons in the mode being in a coherent state Ja) is given by the Poiss...

A: The given probability for finding n photons is given as Poisson distribution: Pn=nnn!e-n Sterling's ...

Q: 2. A hallway has 8 offices on one side and 5 offices on the other side. A worker randomly starts in ...

A: Introduction: According to the permutation rule, if r distinct items are to be chosen from n items w...

Q: The home run percentage is the number of home runs per 100 times at bat. A random sample of 43 profe...

A: The given question requires accurate results, Hence I will use excel to solve this question. htt...

Q: Genuine motor company manufactures an assembly which consists of three mechanical components. Suppos...

A: The probability of not meeting specification for the first component is 0.11. The probability of not...

Q: Suppose you are given a bag containing n unbiased coins. You are told that n − 1 of these coins ar...

A: Given, 'n' unbiased coins in which 'n-1' coins are normal and 1 coin is a fake.  

Q: We have 100 persons. 50 speak Arabic . 30 speak English. 60 speak French.10 speak Arabic and English...

A: Given Total person s=100 50- speak Arabic. 30- speak English. 60- speak French. 10 -speak Arabic and...

Q: In how many ways can 9 students be seat in a row of 9 chairs if Cameron insists on sitting in the fi...

A: Given: 9 Students are to be seated in a row of 9 chairs. Cameron insists on sitting in the first cha...

Q: A card is drawn from a well-shuffled deck of 52 playing cards. Let E denote the event that the card ...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: A Gallup poll of 1,236 adults showed that 14% believe that bad luck follows if your path is crossed ...

A: Given, n=1236 p=14100=0.14

Q: This may be modelled by a markov chain with transition matrix 0.8 * 0.65| By determining the missing...

A: Let the states be C and R denoting that it is clear or raining today respectively.

Q: Probability Question

A: From the provided information, p(E) = 1/9

Q: Assume that blood pressure readings are normally distributed with a mean of 122 and a standard devia...

A: Let "M" be the mean blood pressure readings.

Q: Three digits numbers are formed from the digits 1,2,3,4,5,6, then one number is selectedWhat is the ...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: A sample of n = 40 individuals is selected from a population with µ = 30, and a treatment is adminis...

A: A sample of n = 40 individuals is selected from a population with µ = 30, and a treatment is adminis...

Q: A spinner has numbers 1–9 marked equally on the face. If the spinner is spun 2 times, what is the pr...

A: Given Information: A spinner has numbers 1–9 marked equally on the face and the spinner is spun 2 ti...

Q: Assume that random quesses are made for seven multiple choice questions on an SAT test, so that ther...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: Sir the full question is uploaded in jpg format

A: MLE is known as the maximum likelihood estimator .It is widely used in the field of estimation and t...

Q: The vocabulary test scores for the population of third graders is normally distributed with a mean o...

A: P(36<X<72)=P36-6012<z<72-6012=P-2<z<1=P(z<1)-P(z<-2)=0.8413-0.0228=0.8185=81...

Q: In a certain experiment, the error made in determining the density of a substance is evenly distribu...

A: Assume a random variable X to represent the considered error value. As the error values are given to...

Q: question in file :)

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to ou...

Q: Random variables X and Y have the joint PMF Se(a² + y²), if x € {1,2, 4} and y E {1,3} fx,y (x, y) =...

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a...

Q: Please solve (c) & (d) only!

A: (c) The value of ∑x and ∑x2 is, X X^2 116.6 13595.56 115.5 13340.25 114.7 13156.09 115.2...

Q: The BB Roadwatch service predict delays on a particular route with probability 2/5. However, their c...

A: Note: Hey, since multiple questions are posted, we will answer first question for you. If you want a...

Q: If X represents the result when a 12-sided die is rolled once. Determine P(X = 5).._________________...

A: From the provided information, Possible outcome = 12 X = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12} The...

Q: 0000 000 The numbered disks shown are placed in a box and one disk is selected at random. Find the p...

A: Introduction: If a study involves total n items, out of which n (A) are favorable to an event A, the...

Q: At a certain company, passwords must be from 4–6 symbols long and composed from the 26 uppercase let...

A: Given, At a certain company, passwords must be from 4–6 symbols long and composed from the 26 upperc...

Q: As humans we consume food. The body extracts good things such as proteins and vitamins and throws aw...

A: Using Excel formula “=NORM.S.INV(1-(0.05/2))”, the critical value for 95% confidence level is zc =1....

Q: Please solve (c) & (d) only!

A: d) 95th percentile =gammainv(0.95,11,8)+44 =179.70 d) answer is 179.70

Q: ocld 4.) You are a campaign manager assigned to a fairly conservative rural district, where 65.3% of...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: In its 2016 Auto Reliability Survey, Consumer Reports asked subscribers to report their maintenance ...

A: a. Let σ12 is defined as the population variance of 4 year old automobiles, and σ22 is defined as th...

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.