28. One of the lottery tickets that you can purchase at a local store has these payoff probabilities. Payoff ($) Probability 200 500 .5 .2 .3 What are the mean and standard deviation for the payoff variable?

Q: 5. The test results of the entrance examination in CITE Technical Institute are normally distributed…

A:

Q: 6. The average credit card debt for college seniors is $ 3262. If the debt is normally distributed…

A:

Q: 2. Medical research has concluded that people experience a common cold roughly two times per year.…

A: GivenMean(μ)=160standard deviation(σ)=40

Q: 2. We are given that the average height for women in America is 64 inches tall with a standard…

A: We have given that the random variable X i.e. height of the women. The Mean μ = 64 inches, standard…

Q: The manufacturer of a new compact car claims the miles per gallon (mpg) measurement for the fuel…

A:

Q: 3. For a certain type of computers, the length of time bewteen charges of the battery is normally…

A: Given that mu = 50 ,s.d =15 p ( 50 <x<70 ) = ?

Q: 4. A variable follows the triangular distribution and has the lower limit of 600, an upper limit of…

A: A distribution is called triangular if the shaped of the distribution curve is triangular. This…

Q: uppose that the length of time that a person waits in line for Disneyland's Matterhorn is normally…

A: (1)   Obtain the probability of randomly selecting a person who waits less than 40 minutes in line…

Q: 3- According to nerdwallet.com, the average household mortgage debt was $156,333 in August 2015.…

A: Since we have a random sample of size 144 i.e. n=144 >30. So,  by Central Limit theorem (CLT),…

Q: 3. In a Math test, the mean score is 45 and the standard deviation is 4. Assuming normality, what is…

A: Since you have submitted two questions, we'll answer the first question. For the second question…

Q: 4. An organization for people with high IQ and eligibility requires an IQ above 131.5. Suppose the…

A:

Q: 2. A study by Quadrant Information Services commissioned by Insure.com calculated auto insurance…

A: 2) Let X denote the annual auto insurance rates in the united states and it follows normal…

Q: 9. A track coach found out that distance runners from go over their recommended mile run training…

A: We have to find probability and percentile values..

Q: 4. According to a manufacturer, the average weight of a cereal box they produced is 20 ounces with a…

A: X follows a Normal distribution with mean = 20 and S.D = 0.5 Then z=(x-mean)/SD = (x-20)/0.5…

Q: 7. The Aluminum Association reports that the average American uses 56.8 pounds of aluminum in a…

A: We have to find correct answer...

Q: 6. Suppose the mean weight of school children's book bags is 17.5 pounds, with standard deviation…

A: Solution :-

Q: About 8% of males are color blind. Suppose we take a random sample of 100 men and count the number…

A: From the provided information, Number of trial (sample size) (n) = 100 The probability of success…

Q: 2. The length in days of human pregnancies is known to be normally distributed with a mean of 266…

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

Q: 3.a. On average a supermarket sells 500 litres of milk a day with a standard deviation of 50 litres.…

A: Since you have asked multiple question, according to our guidelines we will solve the first question…

Q: 3. The probability that a component is defective is 0.15. A person orders a box of 200 components.…

A: The probability that a component is defective is 0.15 A person orders a box of 200 components.…

Q: 3. The average number of hours of sleep per night that a college freshman gets is 6.5 with a…

A: In this problem, the mean and standard deviation are 6.5 and 2.8 hours respectively. We first need…

Q: 1) The time until recharge for a battery in a smartphone is normally distributed with a mean of 250…

A: a. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: 1. In a Science test, the mean is 60 and the standard deviation is 6. Assuming the scores are…

A: Note: If the post contains multiple questions only allow to do first question as per guidelines of…

Q: 4. Find the probability distribution for the number of tails that occur when 4 coins are tossed. 5.…

A: 4. SOLUTION: Four coins are tossed. The probability distribution for the number of tails are as…

Q: 1. What is the probability that 2 or more students have Mathitus? 2. What is the mean number (to…

A: 1. The probability that 2 or more students have Mathitus is, Px≥2=Px=2+Px=3+Px=4=0.25+0.10+0.05=0.40…

Q: A car gallery has an average of 60 customers per day. Given that usually 8% of these customers make…

A: Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts at…

Q: 7. The Real Estate Group NY reports that the mean monthly rent for a one-bedroom apartment without a…

A: Given: μ=2631σ=500n=100

Q: 9- A track coach found out that distance runners from go aver their recommended mile run training…

A: 9) D) Given information: μ=7.6, σ=2.8, n=25x¯=8.2 By applying normal distribution:-

Q: The average credit card debt carried by undergraduates is normally distributed, with a mean of $3173…

A: The mean is 3173 and the standard deviation is 1120.

Q: 23. According to Health Affairs (October 28, 2004), in a typical emergency room, 40% of patients…

A: Hi, we are supposed to answer three subparts at a time. Since you have not mentioned which subpart…

Q: 5)The Internal Revenue Service reports that the mean federal income tax paid in the year was $8040.…

A:

Q: 6) Assume that in 2018 the mean mathematics SAT score was 524 and the standard deviation was 117. A…

A: Note: Since you have posted questions with multiple subparts we will solve the first three questions…

Q: 25. The manager of the Portland Electronics store is concerned that his suppliers have been giving…

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three…

Q: d) What is the probability that at most 6 people will use the new machine? e) What is the…

A:

Q: A class has 12 students registered. On any class time 45% of the students are absent. a. Find the…

A: It is given that the number of students registered in class is 12 and 45% of the students are absent…

Q: According to the Niesien Company the mean number of TV sets in a US household in 2013 was 2.24…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: A certain type of new business succeeds 30 % of the time. Suppose that three such businesses open.…

A: Solution: Let X be the random variable of new business succeeds . The probability of new business…

Q: Suppose that you are studying the number of vehicles owned by a US household. You find that the…

A: We have given that,  Let X is random variable are normally distributed with mean (mu) = 1.9 and…

Q: 2. According to the International Graduation Association, on average, high school girls in Canada…

A: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY PLZ REPOST FOR REMAINING

Q: 2) The mean monthly rent for a one-bedroom apartment without a doorman in Manhattan is $ 2,639.…

A:

Q: Assume the average price for a movie is ​$7.35. Assume the population standard deviation is ​$0.44…

A:

Q: 20. Suppose that the sales of a Gas station followed a uniform distribution, with a standard…

A: Given: Let X be the uniform random variable representing the sales of a Gas station  Standard…

Q: A certain type of battery has a mean shelf life of 600 days with a standard deviation of 28 days.…

A: Given: μ=600 and σ=28. The z-score is calculated asz=x-μσwhere x is number of days of the shelf life

Q: 10 It is known that 15% of a large constituency voted for the Working Together Party (WTP) at the…

A: Let there are n trials and each having two outcomes - Success and Failure. The trials are…

Q: 3. A company produces boxes of candy that contain a mean of 50 candies each. The standard deviation…

A:

Q: 4. The mean performance score on a physical fitness test for Division I student-athletes is 947 with…

A: The random variable performance score follows normal distribution. We have to find the probability…

Q: 1. The average time a person spends in a library is 30 minutes. The standard deviation is 6 minutes.…

A: Since you have posted multiple questions , we will solve first question for you. To get the…

Q: In China, four-year-olds average three hours a day unsupervised. Most of the unsupervised children…

A:

Q: Suppose that 8% of all males suffer some form of color blindness. 350 men are sampled. a. What is…

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.