(10pts) Let X be the percentage score on a college entrance participate in an exam prep seminar. X is modeled by a unifor- Let Y be the percentage score on a college entrance exam fo exam prep seminar. Y is modeled by a uniform distribution on 19,600 Given that E[X²] = calculate the 80th percentile of 3 Noo 19600 - ELx 二a, l00 3 1900 9/00 - l00 a, l0o]

Q: If three coins are tossed, what is the probability of getting two tails? A. 1/3 B. 3/8 C. 2/3 D.…

A:

Q: Under what circumstances it would be helpful to identify the probability of an event

A: For identify the probability of an event the circumstances have to explain.

Q: In any given year, a factory has a 20% probability of having a accident. About every how many hours…

A: The probability of having an accident is 20% for a given year.

Q: Ten percent of all people are left handed.  Thus the probability that both a mother and her daughter…

A: Given information: Percentage of all people who are left-handed = 10% or 0.10 It is required to…

Q: Which one of the following is not a valid number for a probability? Oa. 0.32 O b. 17% O c. 0 Od. 1.5

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Q: What do you mean by probability at a particular point is zero?

A: Here we have to answer the given question.

Q: What is the probability that the team will run the​ ball, given that it is 2nd down and they have 6…

A: Here the given table is:-Down and distance RunpassTotal1st down and 10 or more yards to go56811372nd…

Q: The probability that the Rand will weaken against the Dollar tomorrow is 0.53. The probability that…

A:

Q: A problem in statistics is given to five students A, B, C, D and E. Their chances of solving it are…

A: Here, P(A) =1/2 , P(B) =1/3, P(C) =1/4,P(D) =1/5 and P(E ) =1/6.

Q: The probability that it will rain on a given day is 0.23. What is the probability that it will not…

A: The probability that it will rain on a given day is 0.23 P(Rain) = 0.23 We know that , complement of…

Q: If the probability that an event does no occur is 0.3 determine the probability that the event…

A:

Q: What is the probability mean

A: our objective is to define probability

Q: A problem in statistics is given to three students A, B and C whose enhances of solving it are 1/2,…

A: Given : The probability of solving a problem by students A, B and C is 1/2,3/4 and 1/4

Q: A test for a disease gives an answer "Positive" or "Negative". Because of experimental error, the…

A: Introduction: Denote X as the random variable of interest here, which is the number of wrong test…

Q: Please assist to solve the question below: The average wage of chemical engineers is $52.30 per…

A: We have given that.    X~N( μ , ?^2 )    μ =52.30     , ? = 12  n= 50   Z-score =( x - μ )/?

Q: Suppose the probability of a IRS audit is 2.1% for U.S. taxpayers who file form 1040 and who earned…

A:

Q: Each year, a company either makes a profit or takes a loss. If the company made a profit the year…

A: Let the 2 states of the transition matrix be Making profit and taking a loss. From the given…

Q: Suppose you flip a coin and then roll a die. You record your result. What is the probability you…

A:

Q: 5. Using the assumptions in question 4, if the Oxnard College softball team plays three games, what…

A: Probability, p = 50% = 0.50Sample size, n =3

Q: In what situations we can use probability in real life?

A: In real life, we can use probability for weather forecasting. We can gather data from the previous…

Q: . Determine whether the following is a probability model.

A: Given: Outcome Probability Erica 0.3 Joanne 0.2 Laura 0.1 Donna 0.5 Angela -0.1

Q: A football player is trying to achieve a goal from a series of penalty kicks. If his scoring…

A: let  p be the probability that he score a goal q be the probability that he not score a goal p=0.8,…

Q: Michael gave a probability answer as 24. What is wrong with an answer such as this?

A: According to the provided information, Michael gave a probability answer as 24.

Q: a recent​ year, 304 of the approximately​ 300,000,000 people in the United States were struck by…

A:

Q: Which of the following CANNOT be a probability value?     a. 0.26 b. -0.97 c. 0.03 d. 1.0

A: for discrete probability distribution : thevalue of probabilities are between 0 and 1 inclusive and…

Q: In Our daily life use of probability? give some example?

A: Example 1: In the news, we hear the probability of raining today / sunny today/ cloudy today.  This…

Q: If the probability that a company will win a contract is 0.3, what is the probability that it will…

A: Given that  The probability that a company will win a contract = P(A) = 0.3

Q: A problem in statistics is given to three students A,B,C . Whose chances of solving it are…

A:

Q: Question 2: The previous classes results show that one of ten students get A grade in the subject of…

A:

Q: If the probability of a person winning on a scratch-off lottery ticket is 0.016, the odds of winning…

A: Given: P(winning a scratch -off lottery ticket) = 0.016

Q: Q1. A couple decides to continue to have children until they have three daughters. Assuming that the…

A: Here, the probability of success is p=0.54. Thus, according to the negative binomial distribution,…

Q: Sir Joma frequently says "So..." whenever he gives lectures during class, averaging 20 times within…

A: Assuming that the time between "So.."s follows an exponential distribution with a mean of 3 minutes…

Q: Suppose you guess an answer to a math problem​ (not a multiple choice​ question). Is the probability…

A: Here you have not multiple choice question. So it must be written question . In which there are…

Q: Suppose you flip a fair coin twice. What is the probability that the outcome is the same both times?…

A: When we flip a coin toss twice then total number of possible outcomes are S = {HH, HT, TH, TT }

Q: Find the probability of an event E if the odds for E is equal to the odds against

A: Odds of an event:The odds an event is given by the ratio of the probability of the event to its…

Q: Q7. Suppose that someone makes an average of one spelling mistake per email they send. What is the…

A: Given: An average of one spelling mistake is made per email.

Q: Please help me do part C, D and E. Question E is … Part E: You could use your calculator instead of…

A: Step 1:Explaination of part d and e Step 2:Brief explanation of part a,b,c Step 3: Step 4:

Q: A friend flips a coin 20 times and says that the probability of getting a head is 40% because he got…

A: A coin is flipped 20 times and has been observed that the probability of getting a head is 40%…