Let X denote a random variable that takes on any of the values -1, 0, and 1 with respective probabilities X -1 Px (x₂) 0.2 Compute pmf of Y = X². O 0.5 1 0.3

Q: (d) At least 13 of them do not use the website.

A: It is given that the number of observations are independent of the probability of success p = 15% =…

Q: Priti is a real estate agent who sells large commercial buildings. Because her commission is so…

A: From the given information ,Jim has a record of selling an average of 8.3 lagrse commercial building…

Q: ge to the macula, a small spot near the center of the retina sharp, central vision). Researchers are…

A: Given a random sample of 20 people with early-onset AMD gave the following data on age at diagnosis,…

Q: We draw a card at random from a deck of 52 cards. Let A: get a club, B: draw a face and C: draw a…

A: Let the events,     : getting a club card,     : drawing a face card, and     : drawing a red…

Q: The pdf (probability density function) for the CONTINUOUS random variable X is given as: f(x) = {…

A: f(x)=15×e−x/5 x>0

Q: Cost of an Operation A medical researcher surveyed 12 hospitals and found that the standard…

A: Given,Sample size , n = 12Sample , S.D = S = 53Confidence level , C = 90% = 0.90Using formula,

Q: 3.19. A portion of an electrical circuit is displayed below. The switches operate independently of…

A: From above question the given data is as follows:

Q: 33 A small river is found to be polluted due to the chemical waste from two major industries, A and…

A: Given that,The probability of controlling pollution from A nad B are 0.7 and 0.85. If only one of…

Q: Using the Poisson probability formula, calculate the probability of no customers getting a drink at…

A: Every weekday morning, an average of 5 people get a drink at Starbucks between 8 and 8:10am.

Q: Consider the following responses and the associated values of the explanatory vari- ables: Response…

A: ResponseYX1X2X311-35-120-20130-1-31410-40521-3-16320-173351X′Y=[10,14,10,−3]′The equation for the…

Q: Suppose that E and F are two events and that N(E and F)=340 and N(E)=720. What is P(FIE)? P(FIE)…

A: Given,N(E and F) = 340N(E) = 720Using formula,

Q: . Let X be the random variable that represents the life in hours of a certain electronic device. The…

A: It is given that The probability density function of X isf(x) = 20000/x3 ;  x > 100

Q: Using The Chi-Square Distribution Table, =σ2225, =α0.05, =n25, and a left-tailed test, find the…

A:

Q: 6.A sailor does not go to sail if it rains. The probability that it rains one day is 0.1. The…

A: Problem 6:The probability that it rains one day is .The probability that the sailor will go to sail…

Q: The cumulative distribution function of a random varaible X is as follows. F(x)= 0.5 0.6 0.7 0.9 x<0…

A:

Q: Four bricks are sampled at random from a large load of bricks and the crushing strength of each is…

A: From a large load of bricks, 4 bricks are randomly selected. The crushing strength of each is…

Q: 1. If the new supplier does provide spools of .20-mm solid OFE copper wire that average 50 inches…

A: The basic concept needed to approach this problem is understanding and applying the principles of…

Q: Where does all that Halloween candy go? The October 2004 issue of Readers' Digest quoted that "80%…

A: According to the given information,Probability of success in a trial, p = 80% = 0.80Total number of…

Q: After examining their clients' records, Crashorama Auto Insurance calculated the probabilities in…

A: We have given the following probabilities table…

Q: A coin is launched 4 times successively. What is the probability that leave "face in the first 2…

A: Given that a coin is launched 4 times successively.The possible outcomes when a coin is tossed are…

Q: Let X denote the outcome of rolling a die. a. Construct a graph of the (i) probability distribution…

A:

Q: From a group of 9 men and 11 women, a committee consisting of 2 men and 2 women is to be formed. How…

A: Men=9Women=11Choose for a committee 2 men and 2 women

Q: Giving a test to a group of students, the grades and gender are summarized below A Male 14 7 18…

A: Given data,ABC TotalMale1471839Female 3172040Total17243879

Q: Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on…

A: n=29S=9.1

Q: Age of College Students Find the 99% confidence intervals for the variance and standard deviation of…

A: Suppose  is the population standard deviation of the ages of seniors at the college.

Q: Overweight Men For a random sample of 70 overweight men, the mean of the number of pounds that they…

A: Sample size Sample mean Population standard deviation

Q: An auditor randomly chooses 5 tax returns from a list that consists of 15 tax returns. In the list,…

A:

Q: Television Set Ownership According to Nielsen Media Research, of all the U.S. households that owned…

A: H0:-P=0.83H1:-P&lt;0.83

Q: Takeout Food A magazine article reported that 12% of adults buy takeout food every day. A fast-food…

A:

Q: The following probability distribution was subjectively assessed for the number of sales a…

A: The salesperson makes five sales calls in one day, and we have a probability distribution for the…

Q: You have two coins on your pocket. One of them is a fair coin. The other is a biased coin (30%…

A: Let, C1=fair coinC2=biased coin

Q: Johns Hopkins University reports Covid-19 statistics daily for every US state and many countries in…

A: Given that Johns Hopkins University reports Covid-19 statistics daily for every US state and many…

Q: Consider the following responses and the associated values of the explanatory vari- ables: Response…

A: ResponseYX1X2X311-35-120-20130-1-31410-40521-3-16320-173351X′Y=[10,14,10,−3]′The equation for the…

Q: If n(A) =130, n(B) =135, and n(A ∪ B) =250, what is n(A ∩ B)?

A: According to the given information in this questionWe are going to find n(A and B)

Q: At the end of a day, we choose a pen at random and we notice that it is defective. What is the…

A: It is given that Total number of pens = 6000Let the event A be represent the defective pens.P(M1) =…

Q: Vitamin C in Fruits and Vegetables The amounts of vitamin C (in milligrams) for 100g (3.57 ounces)…

A: n=107.9 ,16.3,12.8,13.0,32.2,28.1,34.4,46.4,53.0,15.4

Q: Overweight Men For a random sample of 70 overweight men, the mean of the number of pounds that they…

A: The sample size is 70, the sample mean is 29 and the population standard deviation is 4.3.

Q: On a hot Saturday, Ananya and her 4 friends decide to go to their local pool. Burning up from the…

A: A square pool has dimentions=6 by 6Total number of friends=5 (including anaya herself)

Q: Let X represent a binomial random variable with n=120 and p=0.35. Find the following probabilities.…

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

Q: E and F are independent events with P(E) = 0.25 and P(F) = 0.29, then what is P(Ec ∪ F)? (Enter…

A: We are going to find the following probability by the help of formula

Q: A patient has completed her medical checkup and is waiting to see the report. The report shows that…

A: Let A and B are two events then the baye's theorem has the formula,

Q: Two cards are randomly selected from a deck of 52 cards. (a) Given that the two cards have different…

A: Total number of cards in a deck = 52Two cards were randomly selected from the deck.The total number…

Q: What is mean? What is median? What is mode? 20 16 23 16 33 19 24 32 22 35 22 17 24 20 23 27 43 40 14…

A: 20,16,23,16,33,19,24,32,22,35,22,17,24,20,23,27,43,40,14,17,21,25,39,21,15,18,30,22,41,33,26,18,21,2…

Q: 2 cards are randomly selected from an ordinary playing deck (juters not incluard) Assume picture…

A: 2 Cards are randomly selected from an ordinary playing deck.

Q: Problem 1 Assume random variable y follows an exponential distribution with rate 2. Show that the…

A:

Q: The percentage of wins for a basketball team going into the playoffs was 84.6%. Round the 84.6 to 80…

A: The random sample of size, The probability of success is 84.6% (i.e. ).

Q: The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.),…

A: P=0.15n=9

Q: A company buys microchips from three suppliers I, II and III. Supplier I has a record of providing…

A: Let A be the I supplierB be the II supplierC be the event III supplierE be the microchip is…

Q: Please give solution in correct and detailed explanation format thanku  A baseball player has a…

A: Given,number of trials (n) = 7probability of success (p) = 0.215

Q: Giving a test to a group of students, the grades and gender are summarized below Grades and Gender А…

A: We have given the following tableABCTotal Male1016228Female 611825Total 16271053