13. The table shows the distribution, by age, of a random sample of 3430 moviegoers ages 12-74. If one moviegoer is randomly selected from this population, find the probability, expressed as a simplified fraction, that the moviegoer's age is at least 25. The probability is Age Distribution of Moviegoers Ages 12-24 25-44 45-64 65-74 Number 1310 1040 820 260

Q: 27.Numbered disks are placed in a box and one disk is selected at random. If there are 5 red disks…

A: Given information- We have given the numbered disks are placed in a box and one disk is selected at…

Q: ibution between 0 and 23 seconds. L.e. any smiling time from 0 23 seconds For this problem, we will…

A: (a) Since the smiling times of an eight-week old baby follow a uniform distribution…

Q: Table Probabilities. Gallup did a Survey of the religious habits of Americans, where they compared…

A: From the provided information, Total subjects = 2019 Number of subjects who attend weekly Now and…

Q: A population of values has a normal distribution with μ=116.7�=116.7 and σ=83.8�=83.8. You intend to…

A: From the provided information, Mean (µ) = 116.7 Standard deviation (σ) = 83.8 X~N (116.7, 83.8)…

Q: P(X= x)

A: Let X be the random variable having probability mass function is,  X -4 -3 -2 -1 0 P(X=x)  0.2…

Q: The Turbine Oil Oxidation Test (TOST) and the Rotating Bomb Oxidation Test (RBOT) are two different…

A: It denotes by r  It tells about strength of relationship between dependent variable and independent…

Q: How many whole numbers are there with exactly 5 digits that can be written using only the digits 8…

A: no. of whole number possible with exactly 5 digits from digits 8 and 9 = ?

Q: 6. The Security & Trust Bank employs 4 tellers to serve its customers. Customers arrive according to…

A: (a) Using the M/M/s model, we can calculate the current system's performance by finding the…

Q: You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of…

A: margin of error : E = 0.4590% confidence interval for μ.n = ?σ = 5.6

Q: If n=200 and X=70, construct a 99% confidence interval estimate for the population proportion. SIS…

A:

Q: A method of assigning probabilities based upon judgment is referred to as the O relative method. O…

A: Relative method : (when all possible outcomes are not known and each outcome is not likely)  * Used…

Q: any idea how i could change it to make it right?

A: Required solution is as given in the steps below.

Q: Identify the sampling method used in each observational study: random, simple random, stratified,…

A: To determine the average amount of money that drivers in a particular state spend on auto insurance,…

Q: Suppose that you randomly selected 25 adults. Assume 15% of the population smoke. Round all answers…

A: given datap=0.15n= 25 adults we have to  find out the minimum and maximum value according to range…

Q: Television viewing reached a new high when the global information and measurement company reported a…

A: given data, normal distributionμ=8.35σ=2.5we have to find out the given probabilties.

Q: In a game of chance, you have 0.1 probability of winning $100 and a 0.9 probability of losing $20.…

A: P(win $ 100) = 0.1 P(lose $20) = 0.9 expected value of game = ?

Q: 1. True or false? If X is a discrete random variable with px (1) = , px (4) = 3, and Px (9) = 1,…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: QUESTION 4 Suppose the continuous random variables X and Y have the joint density function x, y =…

A: The joint pdf of X and Y is f(x,y)=4xyx, y∈0,10otherwise Given that the expected values of X and Y…

Q: 4. Suppose that earthquakes occur in the western portion of the United States in accordance with…

A: Given information  Earthquakes occur in the western portion of the United states at at a rate of λ=2…

Q: A corporation owns several companies. The planner for the corporation believes the amount spent on…

A: From the provided information, The data values are as follow: x y 12.5 148 3.5 26 21.4 120…

Q: One of the truly impressive applications of statistics occurred in connection with the design of the…

A: The given problem involves hypothesis testing and sample size determination. The objective is to…

Q: An insurer pays aggregate claims in excess of the deductible d. In p-loss premium E[(S-d)+]. You…

A: It is given that an insurer pays aggregate claims in excess of the deductible d.

Q: B. In a cricket match played to benefit an ex-player, 10,000 tickets are sold at k500. The prize is…

A: Given: There are 10,000 tickets sold price of one ticket=k500 The price of the lottery is k12000…

Q: Consider the following hypothesis test. The following results are for two independent samples taken…

A: Given information Level of significance ɑ=0.05

Q: Refer to Exhibit 1. The expected assembly time (in minutes) is 04 O 16 0 8 02

A: From the provided information, The assembly time for a product of uniformly distributed between 6-10…

Q: Suppose that a family has 6 children. Also, suppose that the probability of having a boy (based on…

A: given data, n= 6p(boy)=P(girl)=12x= no. of boys in familyP(x≥5) = ?

Q: What is the likelihood of a person getting a job offer if they apply to 10 different companies,…

A:

Q: A class grows 12 pea plants from a random assortment of seeds. Based on the seeds available, there…

A: Let p be the probability that a seed produces wrinkled pea. Given that p = 0.25 Let X denote the…

Q: Four cards are labeled with the numbers 1, 2, 3, 4, and then two of them are drawn. (Their order…

A: Two cards are drawn from a set of 4 cards in which order doesn't matter (without replacement) and S…

Q: The solution was incorrect.  At a community center, 200200 members are asked if they own a bike and…

A: Here the given table is

Q: A survey finds that customers are overcharged by price scanning systems, on average, on 1.85% of…

A: given data, p(overcharged by price scanning system)=0.0185p(not  overcharged by price scanning…

Q: Find the mean and standard deviation of the random variable. Find the probability that the number of…

A: Given that  n=20 , p=0.55 , q=1-p=1-0.55=0.45 X~Binomial(n=20,p=0.55) Pmf of X P(X=x)=nCxpxqn-x…

Q: 4. How many ways are there to write a 3-digit positive integer using the digits 1, 3, 5, 7, and 9 if…

A: Hi thank you for  posting  this question.  Since you have post multiple  question  as per our policy…

Q: If thirteen cards are randomly chosen without replacement from an ordinary 52-card deck, what is the…

A: We have given that 13 cards are randomly chosen without replacement from an ordinary deck of 52 card…

Q: To be eligible for further consideration, applicants for certain civil service positions must first…

A: Given Mean(μ)=154 standard deviation(σ)=26

Q: 1. Find P(Z < 1.93) 2. Find P(Z < .05) -

A: standard normal distribution Z~N(0,1)   notr : area under standard normal curve represents…

Q: racing stripes on their back and some do not. Researchers wanted to sample the population and use a…

A: We have to determine which statement is true for null hypothesis H0.

Q: A college professor never finishes his lecture before the end of the hour and always finishes his…

A:

Q: Why is it crucial to represent single-event occurrences?

A: Answer: - Why is it crucial to represent single-event occurrences?

Q: A scribe the sampling distribution of p. Assume the size of the population is 30,000. n = 1000, p =…

A: Given that  Sample size n =1000 Population proportion p=0.239

Q: According to an​ airline, a particular flight is on time 92​% of the time. Suppose 32 flights are…

A: Given information- We have given a problem of the binomial distribution. Probability of a particular…

Q: A typical fuel tanker can carry up to 40,000 L of fuel and can be loaded in about 20 minutes. The…

A: Given that information A typical fuel tanker can carry up to 40,000 L of fuel and can be loaded in…

Q: You measure 20 randomly selected textbooks' weights, and find they have a mean weight of 49 ounces.…

A: n = 20x¯ = 49σ =11.699% ci for μ = ?

Q: Suppose that the City of Chicago is interested in potential revenues if they introduce a tolling…

A: Here the given information is Suppose that the City of Chicago is interested in potential revenues…

Q: Let’s imagine a hand consisting of 1 card drawn from a non-standard 64-card deck with flowers on the…

A: In this problem, we are dealing with a non-standard deck of 64 cards, consisting of 4 suits with 16…

Q: State if each scenario involves a permutation or a combination. Then find the number of…

A: You just won a free ticket for a cruise and you can only bring along 2friends. Unfortunately, you…

Q: Scores on a 100-point final exam administered to all applied calculus classes at a large university…

A: Given that, The random variable X is the scores on a 100-point final exam administered to all…

Q: The data in the table below came from randomized controlled trials that tested the · effectiveness…

A: Given information:   dth_plac tot_plac dth_asp tot_asp Elwood_etal_1974 67 624 49 615…

Q: Suppose that X is a discrete random variable, and suppose that the probability mass function of X is…

A: Given that  Probability distribution  table.  X 0 10 20 30 P(x) 0.4 0.3 0.2 0.1 NOTE:-…

Q: sunny The percent of fat calories that a person in America consumes each day is normally distributed…

A: X~N( μ , ?)   μ=36 , ?=11   Z-score =( x - μ )/?