Why the probability P(X=x)=0, for a continuous variable,?

Q: Assume that females have pulse rates that are normally distributed with a mean of p=75.0 beats per…

A: 1)

Q: The following calculator screenshots show the scatterplot and the correlation coefficient between…

A: From the diagram, we can see that as the number of days absent increases, their grades are…

Q: The joint distribution of the random variable X and Y is given in the following table: 1 2 3 4 Y 1 1…

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Q: Statistical hypothesis testing allows you to: a. Estimate the standard deviation of your sample…

A: Given that  Statistical hypothesis testing allows you to: a. Estimate the standard deviation of your…

Q: - Use the following frequency distribution to answer item numbers 15 to 18. f f f 10.5 8.7 7.9 3 7.1…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: a. Compute the equation of the least-squares line. b. What is the value of r? c. Does the linear…

A: a. Excel procedure to compute least-squares line: Enter the data of Perceived stress and Telomere…

Q: When two unbiased dice are thrown, find the expected value of the product of the numbers shown on…

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Q: Some states permit only licensed firms to sell funeral goods (for example, caskets, urns) to the…

A: Given information: y^=1419+790·x1-254x2+263x1·x2             (71)          (135)    (105)R2=0.79

Q: A certain type of thread is manufactured with a mean tensile strength of 822 klograms and a standard…

A: Given that Mean =82.2 ,s.d =7.2

Q: Select the most appropriate answer. In a negative association between two quantitative variables, y…

A: In Negative association between two quantitative variables is as one variable increases the other…

Q: medical researcher conjectures that smoking can result in the wrinkled skin around the eyes. The…

A: Given: Number of smokers, n1=120 Number of nonsmokers, n2=141 Number of smokers having prominent…

Q: For a sample size of 1, the sampling distribution of the mean will be normally distributed…

A: Sample from normal is normally distributed.

Q: There are N cars in a city, and the license plate number is from 1 to N. The license plate number of…

A: From the given information, there are N cars in a city, and the licence plate number is from 1 to N.…

Q: re 6 celebrities with some of the highest net worths (in millions of dollars) in a recent year:…

A: Given: 5500,3700,1700,1200,1000,950 Formula used: Variance = ∑x1-x-2x-1 Standard deviation =…

Q: [0.3507/x 0 <x<3 The pdf of a random variable X is given as fx(x) = otherwise Find the (i) mean,…

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Q: calculate the mean of X.

A: here use basic of frequency statistic

Q: The graph illustrates a normal distribution for the prices paid for a particular model of HD…

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Q: The owner of a chain of mini-markets wants to compare the sales performance of two of her stores,…

A: Claim : The mean daily sales of the two stores differ.   a)   Hypothesis :  H0 : μd= 0  H1 : μd≠ 0 ,…

Q: Consider the ARMA(1.1) model (x, – u)-a(x-4)= z, -0, z,-1 , where z, - WN (0,o;) ar Al<1. Find the…

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Q: There are 5000 observations in a data set. 10% of the data are “1”s, while the rest are “0”s. If we…

A: The data set consist of 5000 observations. The observations are 0's and 1's. An amount of data…

Q: In a study about learning styles, researchers used a group of 64 elementary school students who…

A: In a study about learning styles, researchers used a group of 64 elementary school students who…

Q: Test the claim that the proportion of people who own cats is smaller than 10% at the 0.025…

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Q: In a certain school district, it was observed that 32% of the students in the element schools were…

A: The following information is provided:  The sample size is n = 313 sample proportion is P  = x/n =…

Q: 13. The restaurant owner claims that the average cost of his customers' purchases is P325.00, when…

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

Q: (1) If a random variable X is a constant, i.e.., X =a then E[a]= a, where a is a constant.

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Q: The following is a list of hospitals in Pasig City. We are interested in estimating the average…

A: Solution: The list of hospitals are given and numbered from 1 to 20.

Q: 2. Workers in a large service industry have an average wage of $13.00 per hour with a standard…

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Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

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Q: The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the…

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Q: Given a data set with и 3D 18 аnd o — find the percent of data within each range: Just type the…

A: As per company guidelines I solved exactly three subparts of the question.thank you

Q: _9. The mean annual income of workers who are college graduates is greater than Php 100,000 a year.

A: here use basic of hypothesis testing

Q: The distribution of weights of chocolate bars produccd by a certain machine is normal with mean 253…

A: GivenMean(μ)=253standard deviation(σ)=3sample size(n)=5

Q: The High Milage Tire company manufactures a particular tire model that has a mean lifetime of 80,000…

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Q: The joint probability distribution function of a discrete random variable is fx.y) = cxy for x-1, 2,…

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Q: Then the mean number (to the nearest whole number) of students who will finish the exam in less than…

A: The distribution function is defined as F(x) = P(X ≤ x) Let p be the probability that a student…

Q: All statistical hypothesis testing in social science research assumes an alpha level of: a.…

A: Given that  All statistical hypothesis testing in social science research assumes an alpha level of:…

Q: Giving a test to a group of students, the grades and gender are summarized below   A B C Total…

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Q: According to the nutrition research, recommendation on the consumption of fiber for children and…

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Q: Determine the critical​ t-scores for each of the conditions below. ​a) ​one-tail test, α=0.05​, and…

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Q: at the bank of california, past data show that 8% of all credit card holders default at some time in…

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Q: Q5: Three runners in a race A, B, C. If the probability of A winning is twice the probability of B…

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Q: 6. Events that have no outcomes in common 7. The general addition rule for two events (formula) 8.…

A: here use basic concept of probability

Q: The null and alternative hypothesis would be:   H0:p=0.1H0:p=0.1 H1:p≠0.1H1:p≠0.1 H0:μ≥0.1H0:μ≥0.1…

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Q: 5. Let X be a random draw from the following box of tickets: 11 224424 6 tickets Are X and Y…

A: Given data x  0  1  1  0  1  1 y  2  2  4  4  2  4

Q: d. a simple random sample of 40 auto insurance policies, find the probability that the average cost…

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Q: For a cooking oil company, the price they are paid for coconuts in large shipments is based on the…

A: It is given that a sample of n coconut can be taken and y1, . . . , yn denotes the amount of coconut…

Q: Weekly Allowances Frequency (in pesos) 500 – 549 450-499 400 – 449 350-399 (f) 2 3 3

A: The represent weekly allowances

Q: a. Use a graphing utility to draw a scatter plot of the data from x =1 through x = 12. Use the…

A: The average monthly temperatures (in F) for a city A are given. We will use TI-84 graphing…

Q: If n=30, (x-bar)=45, and s=13, construct a confidence interval at a 95% confidence level. Assume the…

A: We have given that,  Sample mean (x̄) = 45, sample size (n) = 30 and standard deviation (s) = 13…

Q: Calculate the​ p-value for the following conditions and determine whether or not to reject the null…

A: The value of test statistic and level of significance are given. We have to find the p-value. We…