1. There are 250 dogs at a dog show that weigh an average of 12 pounds, witha standard deviation of 8 pounds. If 4 dogs are chosen at random, what isthe probability that the average weight is greater than 8 pounds?

Q: 1. The average number of milligrams (mg) of cholesterol in a cup of a certain brand of ice cream is…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: 1. The average number of milligrams (mg) of cholesterol in a cup of a certain brandof ice cream is…

A: Normal distribution- The study of the normal distribution or Gaussian distribution has multiple…

Q: 1) Consider an investigator is testing to see if different locations are contaminated with a certain…

A:

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: Suppose that, as part of a game at a charity carnival, players are invited to spin a wheel for a…

A: A random sample of 40 players is selected the probability that a player wins a small prize is 0.40.…

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: 2. The width of white board markers manufactured by a company is approximately normally distributed…

A: 2 a. Obtain the sampling distribution of the sample mean. The sampling distribution of the sample…

Q: Suppose the average time spent driving for drivers age 20 to 24 is 25 minutes and you randomly…

A: It is given that mean and standard deviation are 25 and 1.5, respectively.By using central limit…

Q: The average SAT score of students is 1110, with a standard deviation ≈ 120.   If a sample of n =…

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

Q: If 35% of cows in a herd have Mad Cow disease, and a rancher randomly selects 7 cows, what is the…

A: Note : - As there are two different question, As per our policy we can answer only one question at a…

Q: A machine that builds gas tanks operates in such a way that the capacity of each tank is a normal…

A: Given that, Mean=16 gallons Standard deviation = 0.1 gallons

Q: Suppose that the latest census indicates that for every 10 young people available to work only 4 are…

A: Solution: Let X represent the number of people are employed.  The probability of people are employed…

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: 2. An electronic company in laguna manufactures resisters that have aean resistance of 120 ohms and…

A: Given that: Mean resistance: μ=120Ω Standard deviation: σ=13Ω Random sample: n=40 For : Px>114

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: 1-The length of time a domestic flight must wait between gate departure and rakeoff taxi at Boston's…

A: (a) Obtain the probability that a plane must wait between 18 and 24 minutes before taxiing for…

Q: 1. The weights of deer in a national park are normally distributed with a mean of 65 kilograms and a…

A: Given that, the weights of deer in a national park are normally distributed with a mean of 65…

Q: A new species of rabbit has an average body length of 45mm with a standard deviation of 3mm. In a…

A: Given that the new species of the rabbit has an average body of 45mm, which means the mean is 45mm…

Q: 5. The average salary of bank managers in a certain city is $91,900 pesos per hour with a standard…

A: Let X be the random variable from normal distribution with average or mean (μ) = $91900 and standard…

Q: 2. The average hourly wage for an employee without a high school diploma or technical certification…

A: mean = 8.45 s = 0.3

Q: 1. The Food and Drug Administration is checking the amount of cereal that a breakfast food company…

A: The amount of cereal that breakfast food company is putting in their boxes follows the normal…

Q: 9) For a certain type of computer, the length of time between charges of the battery is normally…

A:

Q: A quality control expert at a large factory estimates that 10% of all the batteries produced at the…

A:

Q: An expert witness for a paternity lawsuit testifies that the length of a pregnancy is normally…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: 1. A 100-watt light bulb has an average brightness of 1640 lumens, with a standard deviation of 62…

A:

Q: 3) Suppose the annual savings (in millions of euros) of a specific household is a random variable,…

A: Let, X: Annual saving of specific household Mean=μ=5 S.D.=σ=1 n=random sample=16 X~N(μ=5,σ=1) Then…

Q: 1. The weights of fish in a certain lake are normally distributed with a mean of 12 pounds and a…

A:

Q: 4. The weights of male basketball players on a certain collegiate basketball league are normally…

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

Q: 4 Riley is a music DJ. So far, her average playing time per day is 5 hours, with a standard…

A: The random variable X follows normal distribution. We have to find the probability that on the next…

Q: 2.Suppose that 60% of middle school students in San Diego wear braces. A random sample of 250 San…

A: Given Information : Suppose that 60% of middle school students in San Diego wear braces. A random…

Q: 4. The local pizza parlor prepares more than a hundred of pizzas a day, and the weights may vary.…

A:

Q: 2. The number of pages in a PDF document you create has is randomly distributed between 5 and 9…

A:

Q: 1. According to a study, the average number of hours of TV viewing per household per week in the…

A: Given mean, μ = 50.4 Standard deviation, σ =11.8 n =42

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

A: Given information: Mean=50 hours and standard deviation=15 hours. That is, μ=50 and σ=15

Q: The Boeing 727 airliner carries 200 passenger and has doors with a height of 72 inches. Height of…

A: Given,mean(μ)=69.5standard deviation(σ)=2.4

Q: Suppose that in the population of American college students the average number of alcoholic drinks…

A: The mean is 24 and the standard deviation is 5.

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

A:

Q: Suppose the teenagers that attend public high schools get an average of 5.7 hours of sleep each…

A: Mean service life is 5.7 and a standard deviation is 1.7.  Sample size 35.

Q: Given that 40% of employed persons are in favour of the implementation of the flexi-week, in a…

A:

Q: 1. A soft drink machine is regulated to that is discharges an average of 150 mL per cup. If the…

A:

Q: a) No more than two of them dislike their mother in law? c) What is the expected number of women ()…

A:

Q: 3. The heights of the students in a certain school are normally distributed with an average height…

A: Hi there! Thanks for posting the question, since there are three different questions we will solve…

Q: 1-The length of time a domestic flight must wait between gate departure and takeoff taxi at Boston's…

A: Solution: 1. Let X be the length of time a domestic flight must wait between gate departure and…

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: Given that 40% of employed persons are in favour of the implementation of the flexi-week, in a…

A: As per our guidelines we are suppose to answer three sub parts.

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.