Question

I do not know how to do normal probality density function

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Other

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Find the critical value and rejection region for the type of​ t-test with level of significance α an...

A: Note:Hey! Thank you for posting the question. Since you have not mentioned the purpose for which the...

Q: Natasha is a physician looking to determine whether a supplement is effective in helping men lose we...

A: Test statistic results:For testing whether a supplement is effective in helping men lose weight or n...

Q: Suppose that you want to do statitical significance tests for fourcorrelations and you want your EWa...

A: According to the provided information, it is required to conduct statistical tests for four correlat...

Q: Suppose x has a distribution with μ = 18 and σ = 10. (a) If a random sample of size n = 37 is drawn,...

A: In this question, it has been given that X follows a distribution with mean 18 and standard deviatio...

Q: You draw and keep a single coin from a bowl that contains 12 pennies, 9 dimes, and 20 quarters. What...

A: The given information is that the bowl contains the12 pennies, 9 dimes, and 20 quarters.It is known ...

Q: Construct a probability distribution for the data and draw a graph for the distribution.  Find the m...

A: The probability distribution is given by:

Q: 9.3 Question is in the attached picture.

A: a. Identifying whether the linear combination are contrast:Contrast:A contrast is linear combination...

Q: I asked the attached question earlier today, and a response was sent, but none of the answer appeare...

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials, s...

Q: What is the condition on the probability of success p that will guarantee the histogram of a binomia...

A: The binomial distribution has p - probability of success and n- number of trails. The binomial distr...

Q: How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y b...

A: Part (a):The scatter diagram, along with the best fitted line (least-squares regression line) for th...

Q: The flow in a river can be modeled as a log-normal distribution. From the data, it was estimated tha...

A: According to the given question, the flow in a river can be modeled as a log-normal distribution. Fr...

Q: Previously, you studied linear combinations of independent random variables. What happens if the var...

A: Hey, since there are multiple subpart questions posted, we will answer first three subparts. If you ...

Q: (c) In 1997, the U.S. population was approximately 266,570,000 people. At the rate of 440 prisoners ...

A: Given number of prisoners for 100,000 population = 440Rate of prisoners = 440/100,000U S population ...

Q: I need help understanding observational units, variables, how to formulate research questions.

A: Solution:Observational units:Observational units are the objects or entities on which information co...

Q: Jobs and productivity! How do retail stores rate? One way to answer this question is to examine annu...

A: Note:Hi! Thank you for posting the question. Since your question has more than 3 parts, we have solv...

Q: How are r and r2 interpreted?

A: In this question, we have to explain how we interpret r and r2

Q: Do heavier cars really use more gasoline? Suppose a car is chosen at random. Let x be the weight of ...

A: Hello there! There are more than three sub parts in the given quesiton. According to our policies ca...

Q: A recent poll by the American Automobile Club found that 74.5% of those surveyed are worried about a...

A: From the provided information we have the following values:Probability that a person worried about a...

Q: A raffle is being held to benefit the local animal shelter. They sell 832 tickets that do not win an...

A: Total number of tickets sold = 832+9+1 = 842Price of each ticket = $5Total income from 842 tickets =...

Q: Statistics Question

A: Solution:It is given that “Budget” as x variable and significance level of α=0.05.The regression equ...

Q: This study investigated the cognitive effects of stimulant medication in children with Attention-Def...

A: Click to see the answer

Q: A group of data items and their mean are given. 12, 20, 28, 48, 72, 108;  Mean=48 A. Type the deviat...

A: A.Computing the deviation from mean for each of the data:Here the data items are 12, 20, 28, 48, 72,...

Q: How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in te...

A: (a)Using the provided data, the sample mean and standard deviation can be calculated using Excel fun...

Q: A police officer claims that the proportion of accidents that occur in the daytime (versus nighttime...

A: Test statistic calculation:In this context, a police officer claimed that the proportion of accident...

Q: Deborah wants to estimate the percentage of people who eat fast food at least once per week. She wan...

A: Margin of error is usually computed using the formula below.  In this question, Margin of error is k...

Q: A normal distribution has a mean of 10 and a standard deviation of 10. What is the number such that ...

A: The given information is that the scores distributed normally with mean 10 and variance is 49. The s...

Q: A librarian would like to determine whether a new book appeals more to adults or to children. The li...

A: Independent samples:Two samples are independent if the sample values selected from one population ar...

Q: For frecuency distribution for us governor 2019.  Party.                     Frequency Democratic.  ...

A: For any event A, the probability of A can be found as follows:

Q: Doctor Frederick believes the population mean weight of adult male patients in his practice is exact...

A: The aim is to find the accurate statement from the following options to evaluate the claim that the ...

Q: Douglas is a farmer who believes that his cow produces an average of 7 gallons of milk per day. To t...

A: The aim is to find the range of p-value.

Q: A recent poll by the American Automobile Club found that 74.5% of those surveyed are worried about a...

A: Hey there! Thank you for posting the question. As your question has more than 3 parts, we have solve...

Q: The state superintendent of schools consistently states that the average salary of all substitute te...

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...

Q: You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, ...

A: Note: We are authorized to answer 3 sub parts at a time, since you have not mentioned which subparts...

Q: Part A, B, C

A: Here, the population standard deviation is unknown, so the t-distribution is used.It is provided tha...

Q: Suppose x has a distribution with μ = 60 and σ = 17. (a) If random samples of size n = 16 are select...

A: Note:Hi there! Thank you for posting the question. The Part (b) of your question asks about the “x d...

Q: I am working on constructing a histogram for some data for the 39 US national parks under 900,000 ac...

A: According to the given data41 ,66 ,233 ,775 ,169, 36 ,338 ,233 ,236, 64,183 ,61 ,13 ,308 ,77,520, 77...

Q: a. Which of the six correlations above are statistically significant (i) if you test each correlatio...

A: We have been given alpha  = 0.05 which implies that the probability of inferring that there is a cor...

Q: What does it mean when two variables are described as “positively correlated”?

A: In statistical analysis to measure the relation between two bivariate data, then if the change of a ...

Q: Listed below are the number of cricket chirps in 1 min and the corresponding temperatures in degrees...

A: In this question we have given the data about no. of chirps in 1 min and the corresponding temperatu...

Q: The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's deg...

A: Note:Thank you for posting the question! Since your question has more than 3 parts, we have solved t...

Q: Describe when a given distribution is a probability distribution.

A: Let us assume X be a random variable such that X connected with the outcome of a random experiment w...

Q: Which statement regarding correlation is true? A. The dependent variable is assigned to the Y axi...

A: Correlation coefficient - r:The Karl Pearson’s product-moment correlation coefficient or simply, the...

Q: (c) Explain why four students coming in late would not necessarily form a random sample. (Select all...

A: (c)A random sample represents the whole population properly.It can happen that some students will be...

Q: Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone...

A: In this question we have the data, using which we have to plot the scatter plot and best line of fit...

Q: A. A population has a mean of 6.9 and standard deviation of 2.6. Find the value that has 80% of the ...

A: Given Population mean = 6.9Standard deviation = 2.6The Z score with the area left to it close to 0.8...

Q: Need (b) and (c) Let X denote the data transfer time (ms) in a grid computing system (the time requi...

A: (a)Finding the values of α and β :The random variable X represents the data transfer time in a grid ...

Q: Hi. How do you arrive at an answer using the TI-83? Thanks.

A: Solution:99% confidence interval for the slope of the regression line is calculated using EXCEL.The ...

Q: Fifty-three percent of all persons in the U.S. population have at least some college education.  Cho...

A: According to the given question, Fifty-three percent of all persons in the U.S. population have at l...

Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30...

A: Introduction:The test hypotheses are:Null hypothesis:H0: p = 0.30, that is, 30% in the sample of 1,1...

Q: I want you to come up with one study idea that would use a one sample chi square and one study that ...

A: The one sample Chi-square test is also called as Chi-square goodness of fit, which is used to decide...