Let n be a number of students volunteer to plant 4 saplings.  If each student plants at least one sapling, what is the value of n so that the standard deviation of the number of saplings planted by a student is as large as possible?

Q: A consignment of 180 articles is classified according to the size of the article as under. Find the…

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

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

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Q: Assume that women's weights are normally distributed with a mean given by μ=143 lb and a standard…

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Q: Suppose the grades in a finite mathematics class are Normally distributed with a mean of 75 and a…

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Q: About 5 % Of the population has a genetic mutation  600 are randomly selected  find the standard…

A: Given,n=600p=0.05q=1-pq=1-0.05q=0.95

Q: Assume that blood pressure readings are normally distributed with a mean of 122 and a standard…

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Q: Assume that blood pressure readings are normally distributed with a mean of 115 and a standard…

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Q: Find the mean and standard deviation for the number of girls in groups of 14 births when p = 0.5* O…

A: Given that ,  n=14  and p= 0.5  i.e. q=1-p = 1-0.5 = 0.5 We have to find mean and standard deviation…

Q: Assume that SAT scores are normally distributed with a mean of 2  and a standard deviation of 23. If…

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

Q: Assume that SAT scores are normally distributed with a mean of 2  and a standard deviation of 23. If…

A: The sample standard deviation s is equal to the ratio of standard deviation of the population σ and…

Q: Assume that 74% of randomly selected adults have a credit card. Assume that a group of five adults…

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Q: Let X be the mean of a random sample of size 50 drawn from a population with mean 114 and standard…

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Q: The probabilities that fast – food restaurant sells 10, 20, 30, 50, 100 burgers daily are 0.20,…

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Q: If the average low temperature of a winter month in Kansas is 19∘ and the standard deviation is…

A: Given  Mean=μ=19, σ=3.9, P(14.71<X<23.29)=?

Q: Let x represents a random number of apples a tree in Oak Glen, California produces in a given…

A: The sample distribution of the sample mean x-bar follows normal distribution with mean, µx and…

Q: 23. Make a conjecture about the relationship between og, ox, and N, where az is the standard…

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Q: ores are normally distributed with a mean of 1518 and a standard deviation of 325. If 1 SAT score…

A: Given: μ=1518, σ=325 The corresponding z-value needed to be computed is: If 1 SAT score is randomly…

Q: From a sample with n=24​, the mean number of televisions per household is 4 with a standard…

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Q: The manager of a new coffee shop is collecting information for how often cars arrive at its…

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Q: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

A: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

Q: person catches a cold during the cold and flu season is 0.4Assume that 10 people are chosen at…

A: This is the case of binomial, as there are only two possible outcomes which are independent and…

Q: Assume that blood pressure readings are normally distributed with a mean of 135 and a standard…

A: According to the given information, we have Mean = 135 Standard deviation = 4.7 Sample size = 35

Q: According to a research​ institution, the average hotel price in a certain year was ​$97.27. Assume…

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Q: A baseball team has 33 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

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Q: Let X be the time taken to assemble a car in a certain plant. X is a random variable having a normal…

A: Standard normal distribution : Let x be the continuous random variable and it is said to be follows…

Q: From a sample with n = 32, the mean number of televisions per household is 4 with a standard…

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Q: The probability of winning a certain lottery to stay in a lodge near Antelope Valley Canyon is 1 For…

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Q: Assume that for the population of all unemployed individuals in Minnesota, the population mean…

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Q: A student knows correct answers to 10 questions out of 12 questions from the book. (A) If a…

A: From the provided information, A student knows 10 correct answers out of 12. Probability of success…

Q: Let X be the time taken to assemble a car in a certain plant. X is a random variable having a normal…

A: Given information: X is a random variable denoting the time taken to assemble a car in a certain…

Q: Suppose that the mean hourly wage of all employees in a large semiconductor manufacturing facility…

A: Given data,μ=50σ=10If n=256P(48<X<52)=?

Q: A population has a standard deviation of o=18 on average, how much difference should exist between…

A: Average difference of a sample mean from population mean is Standard Error Standard Error is given…

Q: Assume that blood pressure readings are normally distributed with a mean of 122 and a standard…

A: Given that  Mean = μ = 122 Standard deviation = σ = 6.4 Sample size = n = 64 X ~ Normal ( μ = 122 ,…

Q: The manager of a new coffee shop is collecting information for how often cars arrive at its…

A: We have to find given data..

Q: Let X be the time taken to assemble a car in a certain plant. X is a random variable having a normal…

A: Given that X~Normal distribution.  Where mean, mu= 30  And standard deviation, sigma = 4 We've to…

Q: Among the students of AUCA, 30% know two foreign languages. Find the mean and the standard deviation…

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Q: Find the probability that a randomly selected adult has an IQ greater than 136.4

A: Let X denote the IQ scores of adults. Given that X follows N(mean = 101.3, SD = 20.2), then  Z = (X…

Q: The table includes 257,264 Hispanic babies. For groups of 257,264 babies, find the mean and…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment. It…

Q: Suppose a life insurance company sells a ​$240,000 ​1-year term life insurance policy to a…

A: Given   Suppose a life insurance company sells a ​$240,000 ​1-year term life insurance policy to a…

Q: The average age of all employees is 25 years, and the standard deviation of the ages of all…

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Q: Is the difference between the mean annual salaries of registered nurses in State A and State B equal…

A: Given; x¯1=75695                      x¯2=70695n1=30                             n2=25σ1=8337…

Q: The probabilities that a customer buys 1, 2, 3, 5, 8 apples each day in a grocery store are 0.20,…

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Q: Assume that different groups of couples use a particular method of gender selection and each couple…

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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: Assume that adults have IQ scores that are normally distributed with a mean of 100.6 and a standard…

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Q: He leaves his house at 7:45 am.If his next class has a quiz from 9:00 am to 9:10 am, what is the…

A: Solon commutes daily from his home to school. On the average, the trip takes 84 minutes, with a…

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: -Find the probability that at least 4 people said they approve of the name. icupiaboooe mos Find the…

A: Let p be the probability that a person approves the winning name. Given that p = 0.60 Let X denote…