a. If a graduate is chosen at random, what is the probability that his IQ is more than 115? b. If a graduate is chosen at random, what is the probability that his IQ is between 125 and 130? c. What should be the IQ of the person to be included in the top 5%?

Q: What probability value would be needed to complete the following probability distribution?

A: for valid probability distribution total probability always equal to 1

Q: (d) Would it be unusual if the sample proportion of tax returns for which no tax was paid was less…

A: Given,n=120P=0.326

Q: Let W be weight in kg, taken from 1000 student and W ~ N (50,25) 1. What is the median weight in kg?…

A: From the provided information, Mean (µ) = 50 Standard deviation (σ) = 25 W~N (50, 25)

Q: c) If the letters of the word SPECIAL are written in a random order, what is the probability that no…

A: There are 3 vowels in the word SPECIAL, i.e. EIA. The number of ways of arranging these vowels are…

Q: In an experiment, a fair six-sided number cube, numbered 1 through 6, was rolled 2 times to…

A: In the 10 trials given above only on Trial 7 the first roll is 4 which is an even number and the…

Q: Consider the following table to answer the following questions left-handed right-handed 15 39 male…

A:

Q: A student is selected at random from a group of 400.   The results are summarized in the two-way…

A: Classical Definition of Probability: If there are n mutually exclusive, exhaustive, and equally…

Q: Given that the number superimposed in a rolling dice experiment is odd, what is the probability that…

A: It was stated that the number superimposed in a rolling dice experiment is odd. Need to find the…

Q: Time spent using e-mail per session is normally dis- tributed, with µ = 8 minutes and o = 2 minutes.…

A: Note Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: 200 people from various demographics (geezer, boomer, zoomer) were asked if they felt hopeful or…

A: As per bartleby guidelines only first three subparts are to be solved. Please upload other parts…

Q: What is the percent probability that a family randomly chosen has both a red and a silver car? Round…

A:

Q: Suppose it is reported that 79 % of people subscribe to a cable or satellite television service. You…

A:

Q: i. Suppose in a district grade 1 through grade 5, 60 percent of the population favor a particular…

A: we are suppose to answer three sub parts .

Q: 2. Estimates of the prevalence of Alzheimer's disease are given in Table below. Suppose an unrelated…

A: Hello! Thank you for the question. According to our policies we can answer three parts at a time. We…

Q: 4. According to the school board, 48% of all the voters in the district support the referendum.…

A: From the provided information, 48% of all the voters in the district support the referendum. a)…

Q: The Cincinnati Enquirer reported that, in the United States, 60% of adults and 82% of youths ages 12…

A: Let X be a random variable following normal distribution with mean μ and variance σ2, i.e.,…

Q: In Table B - Random Digits, each digit in the list of 9000 is equally likely to be 0, 1, 2, 3, 4, 5,…

A:

Q: Q. A state public health department wishes to investigate the effectiveness of a campaign against…

A:

Q: a. what is the probability that the sample mean is between 7.8 and 8.2 minutes? b. what is the…

A: Let , X→N(μ=8 , σ=2) , n=25 By using central limit theorem , The sampling distribution of the sample…

Q: a). What is the probability of randomly selecting someone in the 20-29 age group or someone who…

A: As per our guidelines, we are allowed to answer first three sub-parts. Thansks The following is the…

Q: Using these 545 students as the sample, a student from this study is randomly selected. a. What is…

A: The probability of selecting a student whose favorite sport is skiing = Skiing TotalGrand Total=…

Q: a. What percent of cups will receive less than 11.25 oz of soda? b. What percent of cups will…

A: Given, μ=11.5σ=0.2

Q: According to the table below, what is the probability that a student chosen at random will be 16 or…

A:

Q: a. What is the probability that a person selected at random likes dogs and movies? b. What is the…

A:

Q: The living districts of a class of 28 students are recorded in the following table   A B C Number…

A: Given: The table representing the division of boys and girls is given below   A B C Number of…

Q: In an experiment, a fair six-sided number cube, numbered 1 through 6, was rolled 2 times to…

A: From the sample space number of desired outcomes are (2,5) (2,6) (4,5) (4,6) (6,5) (6,6). Therefore…

Q: a) What is the probability that a randomly selected hotel in Lawton has a room priced between $50.00…

A: 21. Let X is defined as price range of hotel in Lawton. a) The probability that a randomly selected…

Q: A spinner with 10 equally likely outcomes labeled 1-10 is spun once. What is the probability of…

A: Given:      Sample space =1,2,3,4,5,6,7,8,9,10

Q: (a) What is the probability that x is within +$500 of the population mean if a sample of size 70 is…

A: here for part a and b  population  mean  = 51800 population standard deviation = 4000

Q: According to the table below, what is the probability that the age of a student chosen at random…

A:

Q: Suppose 40% of all vehicles are trucks. Of the next ten vehicles that pass on the road, what is (a)…

A:

Q: 5. The proportion of households that own at least one pet in a certain city is estimated to be one…

A: Let there a sequence of trials each having two outcomes, Success and Failure. Trials are independent…

Q: 1. Use the method of your choice to determine the following probabilities. a. What is the…

A:

Q: d. If we know that a person is a Broncos fan, the probability that they have 6 or more siblings is…

A:

Q: Suppose that four microchips in a production run of sixty are defective. A sample of six is to be…

A: a) total number of microchips= 60  We have to pick 6 microchips.  that can be done in 60C6 ways…

Q: Given a standard deck of cards, and you draw a single card at random. What is the probability of…

A:

Q: a) What must the value of k be for this to be a valid probability model? | b) What is the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: a. On average, how many men should the researcher expect to check before finding one who is…

A: here given p =probability of male is colorblind = 0.08 here geometric distribution  p(x=n) =…

Q: Use the method of your choice to determine the following probabilities.   a. What is the probability…

A: a) probability of rolling two 2s followed by one 6 on three rolls of a fair die sample space =…

Q: e prevalence of a certain condition in the population is 0.1. What is the probability that at least…

A:

Q: (a) What is the probability that exactly two of the selected bulbs are rated 23-watt? 0.176 (b) What…

A: here as per policy i have calculated 3 subparts plz repost remaining parts with note i need answer…

Q: 21 Suppose it is known that 40% of Americans own an iPhone. If a random sample of 60 Americans were…

A:

Q: Choose an American household at random and ask how many televisions that household owns. Here is the…

A: Expected value:   In the long run the average value obtained by repetitions for the given experiment…

Q: a. Assuming that the rate of 23.9% is correct, find the probability that 398 or more of the 1482…

A: Given: p = proportion of people has sleepwalked = 0.239 n = Sample size = 1482 As sample size is…

Q: Suppose an experiment consists of rolling two 10-sided dice. Show your work for the following. (a)…

A: Given that, Two 10-sided dice are rolled. Let, the 10-sides of each dice contains the numbers…

Q: d. What is the probability that the item is from Line 2 given that it is non-defective? e. Given…

A:

Q: Eleven percent of American children (ages 4 to 17) have Attention Deficient Hyperactivity Disorder…

A:

Q: The results of a survey of 200 adults are shown in the table. 6' or over Under 6 Total Male 14 88…

A: According to the given information, we have   6' or over Under 6' Total Male 14 88 102 Female…

Q: d) What is the probability that at least two different shifts will be represented among the selected…

A: Probability is the likelihood occurrence of the event. Possible arrangement of observation can be…

Q: Answer the Following Question Probability that a 4 or a red queen is drawn from a deck of…

A: