On a popular app, users rate restaurants as 1. 2. 3. 4, or 5 stars. Suppose a rating is randomly se ected from all the ratings on the app. Let X be the number of stars of the selected rating, Here is the probability distribution of X Value x of X P(X=x) For parts (a) and (b) below. Find the probability that the randomly selected restaurant rating has the described number of stars. (a) 3 or more: (b) Fewer than 4: 0.21 0.20 0.11 0.24 0.24

Q: Compute the probability that a five-card poker hand is dealt to you that contains all hearts.

A: The provided information is as follows:The objective is to find the probability of a five-card poker…

Q: There are 11 broken lightbulbs in a box of 175 lightbulbs. A random sample of 4 lightbulbs is chosen…

A: As per our guidelines, we can solve the first three sub parts of question and rest can be…

Q: 23. The average number of available jobs for registered nurses is 103,900. If this distribution is…

A: It is given that Mean = 103900Standard deviation = 8040

Q: Question 8 Each of 12 refrigerators of a certain type has been returned to a distributor because of…

A: Given:Total number of refrigerators: N=12Number of refrigerators with defective compressors:…

Q: A multiple-choice test consists of 9 questions. Each question has answer choices of a, b, c, d, and…

A: Suppose a random variable X, defines the number of multiple-choice questions.

Q: A continuous random variable X has density function f(x) = 1.5(1-x²), 0≤x≤1. a) Calculate the…

A: From the information, given thatThe pdf of X is,Also given that from the part(a), the standard…

Q: Harry and Ron play a chess match in which the first player to win a game wins the match. After 10…

A:

Q: Compute the probability that a five-card poker hand is dealt to you that contains 4 Aces.

A: 4 aces card from 52 card1 from remaining 48

Q: x y 59.9 72.8 61.4 128.8 33.2 7.2 41.4 -111.7 61.9 160.4 50.3 130.4 47.4 -65.7 43.2 -37.7 48.2 190.5…

A: From the provided information,…

Q: A large fast-food restaurant is having a promotional game where game pieces can be found on various…

A: Given information:The probability of winning prize with any eligible purchase is 0.108.Consider your…

Q: Suppose X is a random variable and h is a non-increasing function, i.e., h(r) ≤ h(2) if a1 > ₂.…

A: Given:1. X is a random variable.2. h is a non-increasing function, which means that for any two…

Q: let k be a random variable that takes with equal prob 1/(2n+1), the values in integer the interval…

A: Let X be a random variable that takes on integer values in the interval [-n, n] with equal…

Q: A company manufactures transistors in four factories producing 10%, 30%, 40% and 20% of the parts…

A: According to the given information ,P(factory 1) = P(f1) =  0.10P(factory 2) = P(f2) = 0.30P(factory…

Q: An elevator has a placard stating that the maximum capacity is 4100 lb-27 passengers. So, 27 adult…

A: The provided information is as follows:The mean weight is  lb.The standard deviation is  lb.

Q: The household size in a certain neighborhood varies from 1 to 6 The probability function of the the…

A: x0123456f(x)0.040.150.170.320.190.10.03

Q: The oracle of Delphi is known to speak the truth 2 out of 3 times. It throws a die and reports that…

A: Let,Event A = The number obtained is actually a six.Event B = Throw a die and reports that the…

Q: 68 A container of food was moved from a standard freezer to a deep freezer to preserve the food for…

A: The coefficient of determination (r2) for the model is 0.90, which means 90% of the variation in…

Q: Let A and B two random events and P(A)-1/2, P(B)-1/5. and P(A | B)- 1/4. Assume X-B(1, P(A)) and…

A: Let A and B be two random events and:    Assume:Where B(1, p) denotes a Bernoulli distribution with…

Q: The cost of attending a sports event is usually not limited to the tickets. Often times, you will…

A: Given that the ticket price of a sports event is $50.P (Parking) = 0.9, the parking price is $20.P…

Q: What is the probability of randomly selecting two marbles without replacement from a bag containing…

A: Total marbles=5+3+2=10Red marbles=5Blue marbles=3Green marbles=2

Q: et X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the…

A: We have given the following the cdf

Q: Bad gums may mean a bad heart. Researchers discovered that 82% of people who have suffered a heart…

A: A.It is given that, 82% of people who have suffered a heart attack have periodontal disease, and…

Q: Answer as simplified fraction The table shows the number of video games sold worldwide for the…

A: GameGames SoldGame 118280000Game 216960000Game 311950000Game 411100000Game…

Q: 7. A combination lock opens with the correct four-digit code. Each wheel rotates through t digits 1…

A: We have given combination lock opens with the correct four digit code and each wheel rotates through…

Q: 30.) A parent-teacher committec consisting of 4 people is to be formed from 20 parents and 5…

A: There are 20 parents and 5 teachersCommittee to be selected=4 people

Q: A jury pool consists of 26 people, 20 men and 6 women. Compute the probability that a randomly…

A: From the provided information,A jury pool consists of 26 people, 20 men and 6 women.

Q: Spray drift is a constant concern for pesticide applicators and agricultural producers. The inverse…

A: Mean=1050Standard deviation=150

Q: Christopher and Jade each have a bouquet of flowers (the two bouquets are distinguishable).…

A: Total flowers = 9 Rose = 4 Tulip = 5 Sample space : Ω = {RR, RT, TR, TT } Christopher picked the…

Q: What is the probability that exactly 8 women will wear sunscreen when outside for more than one…

A: The proportion of women who use sunscreen regularly(P)=30%=0.30Sample size is taken(n) =12Note: Only…

Q: Consider the following joint probabilities table for X and Y , where x = 1, 2, 3 and y = 1, 2, 3, 4.…

A: X\Y1234Marginal Total10.050.10.050.010.2120.20.020.250.070.5430.150.010.030.060.25Marginal…

Q: A realtor uses a lock box to store the keys to a house that is for sale. The access code for the…

A: The access code for the lock box consists of five digits.The first digit cannot be 2 and the last…

Q: The amount of coffee poured from a dispenser into a glass obeys the normal law whose average is 300…

A: Mean Standard deviation

Q: Suppose you were planning a trip to the Disney World next year. You found the probability of going…

A: The probability distribution of number of trips in Place D is given.

Q: A person drilled a hole in a die and filled it with a lead​ weight, then proceeded to roll it 200…

A: It is required to test the claim that the outcomes are not equally likely, and the loaded die…

Q: In a study of recognition of the brand name Mrs. Fields cookies, out of the 50 adults in the study…

A: From the given information,out of 50 adults in the study, it was found that 35 recognized the brand…

Q: Ananya loves even numbers, so she came up with a game to play with her friend So in order to expose…

A: It is required to determine whether the two events, X and Y are independent.

Q: Do you know the mutiple choice?

A: a)P(X=5)=0b)P(X=0)=0.696c)P(X≥1)=0.304

Q: Consider the following set of dependent and independent variables. Use these data to complete parts…

A: Multiple linear regression which estimate the relationship between two or more independent variables…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: There are 27 potential sites designated for urban surveillance testing via a drone: 16 are in…

A: There are 27 potential sites designated for urban surveillance testing via a drone: 16 are in…

Q: Question 12 To communicate one bit of information reliably, cellular phones transmit the same binary…

A: The  receiver detect correct info when 3 or more symbol are received correctly and the error occurs…

Q: b. If 9 male college students are randomly selected, find the probability that their mean weight…

A: Mean=1.4Standard deviation=5.1KG

Q: The TAs invite some other friends to join in on their Barbie watch party. Among the 2 ≤ k ≤ 7 people…

A: This problem is a classic example of a Birthday Paradox or Birthday Problem. The Birthday Paradox…

Q: 78% of all Americans live in cities with population greater than 100,000 people. If 33 Americans are…

A: n=33, p=78%

Q: We consider that the daily number of telephone calls received by the STOF store switchboard operator…

A: Mean()=120Standard deviation()=20

Q: A choice answer exam (4 choices per question) has 10 questions. A student who has not studied at all…

A: Given  n = 10 (number of questions), k = 7 (number of correct answers), and p = 1/4 (probability of…

Q: 7. Suppose (X(t), t≥ 0) is a continuous-time Markov chain with state space S = {1,2,3,4} and…

A:

Q: Question 4 An insurance company offers its policyholders a number of different payment options. For…

A: CDF : Cummulative distribution function is defined as follows :CDF of a random variable X is defined…

Q: through (d). (a) Find the probability that all five have type B* blood. The probability that all…

A: n = 5, p = 7% = 0.07Let X be the person in the United States has type B+ blood.p be the probability…

Q: A customer service representative must spend different amounts of time with each customer to resolve…

A: Let X be the time.Given that X follows an exponential distribution with the average amount of time…