a) Find the standard deviation. b) What is the percentage of students who have scored less than 72? c) If a random sample of 53 students is selected from the college, what is the probability that the mean of the sample will be greater than 88?

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 probability that a randomly selected computer programmer major received salary offer between…

A:

Q: what is the probability that the sample mean will be between 350,000 and 365,000?

A: Given that Sample size n = 100 Population mean = 345800 Population SD = 90000

Q: There are 350 dogs at a dog show, who weigh an average of 15 pounds with a standard deviation of 7…

A: Given,sample size(n)=40mean(μ)=15standard deviation(σ)=7

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

A:

Q: Suppose the country club bills based on a sample of 4 members are: 410, 1,089, 637, 961. What is the…

A: Given information- We have given the country club bills based on a sample of 4 members. 410, 1,089,…

Q: Suppose 20% of all emergency room patients have broken bones. Of the next fifteen patients to…

A:

Q: The average number of moves a person makes in his or her lifetime is 12. If the standard deviation…

A: From the provided information, Mean (µ) = 12 Standard deviation (σ) = 3.2 Sample size (n) = 36 a)…

Q: A Nielsen Company report states that the mean number of TV sets in a U.S. household is 2.24. Assume…

A: Solution: Given information: n= 85 Sample size  μ= 2.24 Population mean σ=1.2 Population standard…

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

A: Solution :-

Q: mean of µ = 70 and a standard deviation of σ = 10, what is the probability of obtaining a sample…

A: Given data: A normally distributed population with mean and standard deviation is given as:…

Q: 6. If the probability of a defective bolt is 0.1, find (a) the mean (b) the standard deviation for…

A: Given,n=400Probability of success(p)=0.1Probability of failure(q)=1-0.1=0.9here we can use binomial…

Q: 1. The mean weight of 5-year-old children is 39.5 pounds, and the standard deviation is 3.2 pounds.…

A: Given that  X~N(μ= 39.5 , σ= 3.2 ) μ= 39.5 , σ= 3.2 , n=52

Q: Suppose it is known that 80% people own a cellphone. If a random sample of 100 people were surveyed,…

A:

Q: A final exam in math 160 has a mean of 73 with a standard deviation of 7.8. if 24 students are…

A: Given,Mean(μ) =73standard deviation (σ) =7.8sample size(n) =24Let 'x' be a final exam in math their…

Q: (5) Based on the mean and standard deviation, which of the scores are extremely high or extremely…

A: The z-score of the given data values tells how far raw data is from the mean in terms of the…

Q: d) If they stop 30 cars during the first hour, find the mean and standard deviation of the number of…

A: Given Information: 90% of drivers do "buckle up" (wearing seat belts). (d) If they stop 30 cars…

Q: The service time for customers coming through a checkout counter has mean 128 seconds and standard…

A: Let, X=The service time for customers coming through a check out counter Given that X follows a…

Q: According to the Nielsen Company, the mean number of TV sets in a U.S. household in 2013 was 2.24…

A: Mean = 2.24 Standard deviation = 1.3 Sample size = 95

Q: The mean time taken to learn the basics of a word processor by a group of students is 200 minutes…

A: Let, X= time taken to learn the basics of a word processor  Given that X follows a normal…

Q: Regarding the estimate of the conditional standard deviation, s, which of the three sums of squares…

A: Estimate of the conditional standard deviation:The estimate of the conditional standard deviation…

Q: 4. The average public elementary school has 468 students with a standard deviation of 87. If a…

A: Here use given step by step solution and normal distribution of sample mean

Q: III. The height of the PBA players mean of 193 cm with standard deviation of 7. If 30 of them are…

A: Given,sample size(n)=30mean(μ)=193standard deviation(σ)=7

Q: A final exam in science 160 has a mean of 73 with a standard deviation of 7.8. If 25 students are…

A: Given information- Population mean, µ = 73 Population standard deviation, σ = 7.8 Sample size, n =…

Q: A study at a college in the west coast reveals that, historically, 45% of their students are…

A: a) It is known that, the mean of the sampling distribution of sampling distribution, p-hat is equal…

Q: 2) Assume that men’s weight in the United States are normally distributed with a mean 172 pounds and…

A: Given,   Mean = 172 Standard deviation = 29

Q: Thailand, the probability of catching a cold during the rainy season is 0.4. Assume ten people are…

A:

Q: (c) What is the probability a simple random sample of 60 ten-gram portions of the food item results…

A: Since the student asks for assistance in part (c), only part (c) is solved.

Q: The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally…

A:

Q: Assume you have a binomial distribution. In an experiment with 100 trials and a probability of a…

A: Given that, n=100 p=1/2 =0.5 Standard deviation=?

Q: Erla rolls six sided dice 15 times. What is the standard deviation of the number of sixes that…

A: Let p be the probability of six  p=1/6, n=15 Let X be the number of sixes in rolling of dice  Then…

Q: An important aspect of a federal economic plan was that consumers would save a substantial portion…

A: sample size means, a number of individuals picked from the sample. When the sample size is 30 or…

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5, if a sample…

A: Solution: We are given:

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 Nielsen Company report states that the mean number of TV sets in a U.S. household is 2.24. Assume…

A: Obtain the probability that the number of TV sets is greater than 2 in that household. The…

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: 2. The probability that a package is delivered on time is 0.97. If 500 randomly selected packages…

A: Givenprobability that package delivered on time (p)=0.97sample size(n)=500

Q: ) The average annual salary for government employees in Manila is Php 125,000. Assume that the…

A: According to the answering guidelines, we can answer only three subparts of a question and the rest…

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: The average number of moves a person makes in his or her lifetime is 12. If the standard deviation…

A: Given,   Mean = 12 Standard deviation = 3.2 Sample size = 30

Q: Given the random variable X~Bin(20, o.4), what is the standard deviation of X?

A: It is given that the, X~ Bin(20,0.4) We know that the standard notation of binomial distribution is…

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

A:

Q: According to the US energy administration, the mean monthly household electric bill in the united…

A:

Q: 3. If the probability of a defective bolt is 0.1, find (a) the mean, (b) the standard deviation, for…

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.