Answered: For a normally distributed random…

For a normally distributed random variable, the stnadard deviation is 3.7. What us the mean if 10% of the distribution is less than 31

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: (a)What is the probability that at least 5 of the students are first generation college students?…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: The population standard deviation and sample standard deviation are of the same value if the…

A: Solution A population and sample standard deviation both have same unit as Population unit.

Q: Given a sample data set with a Variance of 6.25, what is the Standard Deviation of the data set.?

A: Given, Variance=6.25 sd=?

Q: If the mean of a Binomial distribution is 5, which is the most likely value for its standard…

A: Answer :- Mean of binomial Distribution = np = 5 Standard Deviation of binomial Distribution =

Q: 00 freshmen at Arundel University took part in a math comprehension test. The scores were normally…

A: The middle (center) of the normal curve represents the mean of the curve. The normal curve is the…

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

A: Comments: As per our guidelines we are supposed to answer only three subparts. Kindly repost other…

Q: simple random sample comprised of the following data: 55, 23, 15, 6, 31. What is the point estimate…

A: Given that Data - 55, 23, 15, 6, 31. Number of data values (n) = 5 Sum of data value = 55+…

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9, 4, 7, 1, 4.

A: Considering the scores as population. The population mean is, μ=∑XN=9+4+7+1+45=255=5 Thus, the…

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9,4,7,1,4.

Q: A pharmaceutical company claims that a drug is effective in treating 90% of people having severe…

A: It is given that the random variable follows a binomial distribution with n=6 and p=0.9.

Q: Based on a recent report, the cost of healthcare is $8,086 per person in the United States. Suppose…

A: Given : Population Mean,μ = 8086.0 Population Standard Deviation,σ = 2500.0 sample…

Q: In triathlons, it is common for racers to be placed into age and gender groups. Friends Leo and Mary…

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

Q: For the above distribution (-1,0,1), what is the sample variance?

A: Use the given data to form the excel table:

Q: If a random variable is standardized (by subtracting the mean and divided by the standard…

A: If X~N(μ,σ2) mean=μ, variance=σ2 Let, Y=X-μσ Then, mean =E[X]-μσ=μ-μσ=0 Variance =1σ2Var(X)=1σ2·σ2=1…

Q: 3. Given the sample variance of a distribution, explain how to find the standard deviation.

A: Variance is the measure of dispersion that calculates the average of the squared difference from the…

Q: You may need to use the appropriate appendix table or technology to answer this question. A…

A: From the provided information,

Q: A population mean is 13. The sample mean is 12.8, and the sample standard deviation is two. The…

Q: Find the standard deviation, σ, for the binomial distribution which has n = 48 and p = 3/5. Round…

A: Given: n = 48 p=35

Q: The CPA Practice Advisor reports that the mean preparation fee for 2017 federal income tax returns…

A: Solution: Given information: The mean preparation fee for 2017 federal tax returns is $273. The…

Q: A machine produces electrical components. 99.7% of the components have lengths between 1.176 cm and…

A: Given 99.7% components length lies between 1.176 and 1.224 m Using empericals rule we know that…

Q: Ashley and Delaney began arguing about who did better on their tests, but they couldn't decide who…

Q: Use a formula to find the standard deviation of the sample 1, 4, 5, 6.

A: We have given that, The data set of the sample is, 1, 4, 5, 6 Then, We will find the standard…

Q: Suppose a population has three values 13, 17 and 24. What is the standard deviation of the sampling…

A: Given, Population values are 13, 17 and 24. Samples are drawn without replacement.

Q: What is the sample variance and the sample standard deviation for this distribution? b. If we had…

A: Given : n=60 , SS=240 Our aim is to find the sample variance and sample standard deviation.

Q: If the variance is 4.1 grams, what is the standard deviation? Multiple Choice 1.100 2.025…

A: Given that, Variance = 4.1 grams

Q: In your two sets of Statistics tests, find the mean of the number of tests that will be passed. 1.…

A: Given: The provided dataset is given as: Number of passed test (x) Probability P(x) 0 0.25 1…

Q: If the mean of a random variable is 30 and the standard deviation is 6 , and three consecutive data…

A: It is given that, Mean,μ=30 Standard deviation,σ=6

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

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

Q: if the sample mean is 10, the population standard deviation is 20, and the sample size is 25, then…

Q: A study randomly selected 676 Canadians and asked them what portion of their income they allocate to…

A: Given that - A study randomly selected 676 Canadians and asked them what portion of their income…

Q: A bookstore found out that 23 percent of their customers buy a book, 34 percent of their customers…

Q: Six different second-year medical students at Bellevue Hospital measured the blood pressure of the…

A: Given 126,138,132,138,124,122

Q: You may need to use the appropriate appendix table or technology to answer this question. A…

A: We have given that simple random sample of 50 City A residents the mean is 22.6 miles a day and the…

Q: The average drive to work is 9.6 miles. Assume the standard deviation is 1.8 miles. If a random…

A: From the given information, x¯=9.6σ=1.8n=36

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: We know that If X follows normal distribution with mean μ and standard deviation σ, then Z=X-μσ…

Q: If you have a sample of n=25, what is the standard error if the population standard deviation =60

Q: 10. If you have a sample of n=25, what is the standard error if the population standard deviation is…

A: The standard error of a statistics is shows the standard deviation of a estimate of a parameter and…

Q: An airline charges $25 for the first bag, $35 for the second bag. 54% have no checked luggage 34%…

A: The given information is that an airline charges $25 for the first bag, $35 for the second bag. 54%…

Q: Find the mean and standard deviation for the number of girls in 8 births.

Q: i. What are the mean and standard deviation of the total amount of milk and flour in Jim's…

A: Here Take Random variable X= no of Cup of Flour in single recipe Y=no of cup of Milk in Single…

Q: 4. The variance of a data set is 3410.56. Find the standard deviation for the data set.

Q: If the population standard deviation is 20 and the sample size is 25, then what is the value of the…

Q: The standard deviation of the sample 10, 10, 10, 10, 10 is

Q: Given a sample data set with a Variance of 6.25, what is the Standard Deviation of the data set.?

Q: If the standard deviation is 9, then what is the variance? 3.

A: Variance is square root of standard deviation

Q: A fitness instructor at a large gym would like to know if the individuals that take fitness classes…

A: Morning steps mean should be greater than Evening

Q: ou are applying for a job at two companies. Company A offers starting salaries with μ=$34,000 and…

Q: For a normal distribution with a mean of 160 and a standard deviation of 10, what are the values…

A: Solution

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: Let X is the gas mileage for a hybrid car. X~Normalμ=57,σ2=3.52

Question

For a normally distributed random variable, the stnadard deviation is 3.7. What us the mean if 10% of the distribution is less than 31?

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution