If my z score is 3.125, and the question asks for the probability that X is less than a number, would the probability be unusual?? Because wouldn't that be saying that there is a 99% probability than X is less than 23, therefore NOT making it an unusual event?

Q: 3) What is the likelihood that you will get only one four with your roll of the two dice?

A: Obtain the likelihood of getting only one four in a roll of two dice.   The likelihood of getting…

Q: It has been found that 2 out of every 10 people who visit a local store purchase juice. If we…

A: Let x follows binomial distribution with parameters, The pdf of binomial distribution is, The…

Q: It has been shown by claims that have been made that 20% of parcels arrive damaged when using an…

A:

Q: If 58% of the people at a certain conference are doctors, 38% are men, and 18% are male doctors,…

A: Given If 58% of the people at a certain conference are doctors, 38% are men, 18% are male doctors,

Q: If the probability of a machine producing a defective part is 0.05, what is the probability of…

A:

Q: In a recent study, 29% of people surveyed indicate chocolate was their favorite flavor of ice cream.…

A:

Q: The manager of the Fore and Aft Marina in the previous problem wants to investigate the possibility…

A: (1). Compute the probability that the boat dock will be idle: The arrivals follow a Poisson…

Q: Rob Lee knows that he can compete successfully in a single track mountain bike race unless he gets a…

A: Let F -  getting a flat B - chain breaking P(F) = 0.3 P(B) = 0.05 P(F and B) = 0.01

Q: For the experiment of rolling an ordinary pair of​ dice, what is the probability that the sum will…

A: When two dice are rolled then the sample space is   n(S)=36

Q: Rob Lee knows that he can compete successfully in a single track mountain bike race unless he gets a…

A:

Q: To the right are the outcomes that are possible when a couple has three children. Assume that boys…

A: Given The eight simple events are equally likely. 1st   2nd   3rd   boy − boy…

Q: What is the probability that the first time Alex gets a job interview will not be the sixth…

A: here  p = probability of getting a chance of job interview = 0.19

Q: Company records show that the proportion of defective parts has historically been 5%, however a…

A: Given Company records show that the proportion of defective parts has historically been 5%, however…

Q: Suppose a group of students take an influenza test and 96% of the students test positive. What is…

A: Given that Student tested positive = 96% I.e probability of students tested positive is =0.96

Q: In the experiment of rolling two dice, what is the probability that the absolute value of the…

A:

Q: What is the probability of obtaining x= 50 or more individuals with the characteristic? That is,…

A: Sample size is n = 200 Population proportion is p = 0.2

Q: Given that the mean weight of schoolchildren's book bags is 17.5 pounds, with a standard variation…

A: We have given that Population mean = 17.5 Standard deviation = 2.2 Sample size n =30

Q: Two unfair coins, both favoring heads, are tossed simultaneously for many trials, with the results…

A: It is given that Number of times two head occurs = 63 Number of times one head and one tail occurs =…

Q: The table to the right lists probabilities for the corresponding numbers of girls in three births.…

A: Given that  Random variable (x) =  Number of girls in three births The random variable  x  = 0   ;…

Q: A gambler states that the probability of getting a "1" and a "2" when rolling two four-sided dice is…

A: here two 4 sided dice are rolled

Q: The southeast regional manager of General Express, a private parcel-delivery firm, is worried about…

A: Given: Let A represents the event of Pilots. Let B represents the event of drivers. The probability…

Q: Migraine medication was administered to patients in that 2% experienced weight gain as a side…

A:

Q: If we set a = 0.01, what is the probability that we reject the null hypothesis when it was in fact…

A:

Q: Inside the wrapper of a certain candy bar, there is a 1 in 10 chance to win a prize. Suppose you buy…

A:

Q: In a certain high school, the probability that a student drops out is 0.05, and the probability that…

A: The formula for a randomly selected student gets GED is

Q: According to a study published in a reputable science​ magazine, about 8 women in​ 100,000 have…

A: We have given that  P(C)=0.00008 P(test pos|C)=0.89 Find P( test pos and C)

Q: The percentage of the damaged production of a lamp factory is 1000. If a sample of 5 lamps is…

A:

Q: It is generally believed that 29 % of all pieces of candy in a family pack of Hershey’s candy are…

A: Given The percentage of all pieces of candy in a family pack of Hershey's are dark chocolate =…

Q: It has been found that 2 out of every 10 people who visit a local store purchase milk. If we…

A: Obtain the probability that no more than two of the visitors will purchase milk. The probability…

Q: On any given work day, Lillian notices that as she’s driving to school, she is first stopped by a…

A: Let T denote Train and R denote Red light. Given: PR=0.70PT=0.40 Stopped by red light and train are…

Q: In research, it is conventional to reject the null hypothesis if the probability value is lower than…

A: The decision rule of the hypothesis test is given as follows: If the p-value ≤ α, then the null…

Q: If the chance of rain on Sunday increases to 50% if it rains on Saturday, suppose you were away on…

A: e. P(rain on Saturday) = 0.60 P(no rain on Saturday) = 1 - 0.60 = 0.40 P(rain on Sunday | rain on…

Q: 1) The number of cracks in a 105-km expressway is 30. What is the probability that there would be no…

A: Solution.

Q: An average student is known to have a chance of 50% in answering a TRUE or FALSE question correctly.…

A: Obtain the probability that an average student will have at least 1 correct answer.   The…

Q: a fair coin is tossed three times. what is the probability of obtaining at least two tails?

A: Let S be the number of outcomes when the coin tossed three times and A be the possibilities to get…

Q: If a "fair" coin is tossed 1,000,000 times, one would expect the probability (not the number of…

A: here given, The Law of large numbers states that as the number of repetitions of an experiment n…

Q: My question with Compound Probability Given P(A) = 0.92, P(B) = 0.33, and P(A or B) = 0.40, are…

A:

Q: In an experiment, the probability that event A Occurs is and the probability that event B 6 occurs…

A:

Q: If the population proportion is 0.90 and a sample of size 64 is taken, what is the probability that…

A:

Q: If you get a positive identification from a caller on this test, what is the probability that he…

A:

Q: Suppose that in the small state of Rhode Island in the USA, the average number of women suffering…

A:

Q: When a meteorologist says that there is a 30% chance of showers, what type of probability is the…

A: Given that  Based on the given data

Q: An engineering school reports that 51% of its students were male (M), 33% of Type number- its…

A: P(M)=0.51 P(A)= 0.33 P(M and A)= 0.24 The general addition rule of probability is, P(M or A) = P(M)…

Q: According to a poll of​ adults, about 40​% work during their summer vacation. Assume that the true…

A: From the given information, Sample size (n) = 500 Probability of success (p) or adult work during…

Q: Suppose you are told that among Atlantic salmons, the proportion of salmons suffering from a viral…

A: 1)  Given information: The proportion of salmons suffering from a viral infection=p=0.085 p^=0.90 n…

Q: Catherine Chao, Director of Marketing Research, needs a sample of Kansas City households to…

A:

Q: If the weight (in grams) of cereal in a box of Lucky Charms is N(485,3), what is the probability…

A:

Q: To reduce laboratory​ costs, water samples from twotwo public swimming pools are combined for one…

A: Probability of an event: The formula for probability of an event is as follows:

Q: Within the general population in the 21st century, the chances of having twins are about 3 in 100…

A: Given Information: Let A be the event of getting a couple with twin baby. Let B be the event getting…