A random variable X has the following probability distribution. Solve for the value of k and final answer in two decimal.
Q: The probability of winning a cricket match is 0.45.What is the probability to lose the match.
A:
Q: Sixty-five percent of men consider themselves knowledgeable soccer fans. If 10 men are randomly…
A: Given n=10, p=65%
Q: Consider the variable Joe’s weight next Friday. What is the probability he weighs 170 pounds, the…
A: Uniform distribution is the type of continuous probability distribution. It is a type of simplest…
Q: Aylin wrote a phone app. She has noticed that 25% of the users who download her app upgrade it the…
A: The variable X be the number of customers who download Aylin's app until one upgrades it on the same…
Q: Jeremy sells a magazine which is produced in order to raise money for homeless people. The…
A: Given:n = number of trials =20 (since Jeremy approaches 20 people)p = probability of success on each…
Q: The probability that a student pilot passes the written test for a private pilot license is 0.7.…
A: Given data : The probability that a student pilot passes the written test for a private pilot…
Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…
A:
Q: Solve the problem. The table lists the drinking habits of a group of college students. If a student…
A: Solution-: We have given following table: Sex Non-drinker Regular drinker Heavy Drinker Total…
Q: In a recent survey, 65% of the community favored building a health center in their neighborhood. If…
A: Given p=65%, n=14, x=8
Q: A student takes a ten question true false quiz but did not study and randomly guesses each answer.…
A: Given: Number of questions = 10Probability of getting correct =1/2 = 0.5 (because it is a true -…
Q: Find the joint probability of A and B for the following. P(B)=0.43 and P (A|B)=0.53 Enter the…
A: Given : PB=0.43PA|B=0.53 We have to find joint probability of A and B i.e. PA and B
Q: In a large population, 57% of the people have been vaccinated. If 3 people are randomly selected,…
A: Obtain the probability that that at least one of them has been vaccinated. The probability that that…
Q: A traffic stop light stays red for 29 sec. Drivers arrive at the stop light at random times. What is…
A:
Q: The probability of liking dogs is 60%. For 200 people, what is the probability that 115 OR MORE…
A: Given: p=0.60n=200 The probability that 115 or more people like dogs in any order is obtained as…
Q: 53% of undergrads at UD are from Ohio. If a Simple Random Sample of 180 UD undergrads will be taken,…
A: proportion of Undergrads at UD are from Ohio(p)=0.53sample size(n)=180Mean()=p=0.53standard…
Q: Terry purchases 25 scratch off lottery tickets. Each ticket has a 10% chance of winning. What is the…
A: Given: Sample size (n)=25. The probability of winning is p=10%=0.10.
Q: In a large population, 61% of the people have been vaccinated. If 5 people are randomly selected,…
A: From the given information, Sample size (n) = 5, Probability of success (p) = 0.61.
Q: An insurance company sold 2,500 policies ($100,000 payout value) this year. The probability of death…
A: The number of deaths that would result in breaking even means that the expected mean is zero.…
Q: A researcher conducted a survey that asked 100 people which sport they liked best: baseball,…
A: We know that, Probability of any event can be calculated using the formula, P(event)= no. Of that…
Q: Terry purchases 30 scratch off lottery tickets. Each ticket has a 10% chance of winning. What is the…
A: Given: The sample size is n= 30. The probability of winning is p=10%=0.10.
Q: Fifty-three percent of all U.S. citizens have some college education. Choose 10 people at random,…
A: Answer: Given that p= 0.53 , n=10 now will use…
Q: At a used-book sale, 100 books are adult books and 155 are children's books. Of the adult books, 74…
A: The contingency table is given as : Adult booksChildren bookTotalNon…
Q: The mean percent of childhood asthma prevalence in 43 cities is 2.41%. A random sample of 31 of…
A: Guven:Mean (µ) = 2.41Standard deviation (σ) = 1.36Sample size (n) = 31
Q: t Dee Dee's Dinette, the probability that a customer orders coffee is 0.66, the probability that a…
A: Given : the probability that a customer orders coffee is 0.66 the probability that a customer orders…
Q: In a large population, 66% of the people have been vaccinated. If 4 people are randomly selected,…
A:
Q: undredths place. upcakes are being randomly passed out to very student in the class. The assortment…
A: We have given that, Carrot cake = 6 Chocolate cake = 5 Lemon = 3 Mint chocolate = 2 Birthday cake =…
Q: Find the probability of the indicated event if P(E) = 0.20 and P(F) = 0.45. Find P(E or F) if P(E…
A:
Q: Marco is a basketball player who succeeds 90% of his free throws. What is the probability that he…
A: the probability that Marco succeeds in minus 7 of his next 10 free throws, you can use the binomial…
Q: Three friends go bowling. They each throw strikes 51%, 72%, and 26% of the time respectively. Find…
A: Let A be the event that first friend throw strikes B be the event that second friend throw strikes…
Q: Estimate the probability of the event. Of 1936 people who came into a blood bank to give blood,…
A:
Q: 80% of new car buyers choose automatic transmissions. For a group of 10 new car buyers, find the…
A: Given that, 80% of new car buyers choose automatic transmissions. Sample size, n = 10
Q: A woman plans to have two children. The probability that each child is a boy is 0.525, and the birth…
A: Given,P(a baby boy)=0.525P(a baby girl)=1-0.525=0.475
Q: The probability that A hits a target is 1/5 and the probability that B hits it is 1/7. What is the…
A: Probability that A hits a target = 1/5 Probability that B hits a target is 1/7 If two event A and B…
Q: Find the probability of the indicated event if P(E)=0.30 and P(F)=0.45. Find P(E or F) if P(E…
A: Solution: From the given information,
Q: The average number of phone inquiries each day at the customer service is 40. Find the probability…
A:
Q: The probability that a person catches a cold during the cold and flu season is 0.4. If 10 persons…
A: We have given that- P(a person catches a cold during the cold and flu season) = 0.4 Sample size, n =…
Q: Find the probability of the indicated event if P(E) = 0.40 and P(F)=0.50. Find P(E or F) if P(E and…
A:
Step by step
Solved in 2 steps
- p= .3313 n= 77 p-hat= .5 What is the probability that of the 77 people selected more that 50% will have a cat at home.the probability that a tire is defective is 30%. The owner of a company buys 8 tires. Then the probability that exactly 5 tires are defective is what?A landscaper is selecting two trees to plant. He has five to choose from. Three of the five are deciduous and two are evergreen. What is the probability that he chooses trees of two different types? Express your answer as a percent. O 30% O40% 50% O60% DELL
- A survey shows that the students at a particular London college carry an average of £20 in cash. Assume that you’ve just met a student at random. Answer the following questions. i. Estimate the chance that the student is carrying more than £100 ii. Estimate the chance that the student is carrying less than £80.Terry purchases 30 scratch off lottery tickets. Each ticket has a 10% chance of winning. What is the probability that she has her first successful ticket on the 10th try?(Round to 4 decimal places)Use the formula for the probability of the complement of an event.A pair of dice is rolled 3 times. What is the probability that a sum of 5 on the 2 dice will occur at least once? (Round your answer to three decimal places.)
- L9Q10.The probability that a child is born physically challenged is 0.35 during a year in a city. What would be the probability that a child is born healthy in the city? A.0.15 B.0.50 C.0.55 D.0.65Solve the problem.Suppose the candidate pool for two appointed positions includes 10 women and 5 men. All candidates were told that the positions were randomly filled. Find the probability that two men are selected to fill the appointed positions. Select one: A. 0.095238 B. 0.238095 C. 0.428571 D. 0.133333The probability that it will snow in a city in December is 0.4 a. find the probability that it will not snow on a given day b. find the probability that it will snow on two consecutive days.
- You purchase boxes of cereal until you obtain one with the collector's toy you want. If, on average, you get the toy you want in every 23rd cereal box, what is the probability of getting the toy you want in any given cereal box? Round the final answer to three decimal places.The mean percent of childhood asthma prevalence in 43 cities is 2.38%. A random sample of 30 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the sample is greater than 2.8%? Interpret this probability. Assume that o = 1.25%. The probability is (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. About % of samples of 43 cities will have a mean childhood asthma prevalence greater than 2.8%. O B. About % of samples of 30 cities will have a mean childhood asthma prevalence greater than 2.38%. O C. About % of samples of 30 cities will have a mean childhood asthma prevalence greater than 2.8%. Click to select your answer(s). P Type here to search 99+ a (? 1:42 PM 4/11/2021 ho insen 144 ese & t backspace %23 3. %24 4 6. 8 2. Y W tab H. J. K pase 5 RIn a regional shooting competition, the probability that a participant will hit the target is 2/7. If he shoots 13 times, what is the probability that he hits the target exactly 8 times? round off to 4 decimal
