let the pdf f(x) is even function then E(x) is?

Q: 4. Interpret the given scatterplots (Shape (form), Trend (direction), and Variation (strength) based…

A: Scatter plot is the visual representation of the correlation. It shows the degree of association…

Q: A factory produces a total of 300 computers per day which are on the average 3 computers are…

A: Solution: Given information: Let X =Defective number of computers  N= 300 total computers  Average…

Q: hen matched these scores with their exam performance after they had taken the exam. Use the data…

A: Given as, Student Heart rate Exam score A 76 78 B 81 68 C 60 88 D 65 80 E 80 90 F 66…

Q: The following table shows the number of people that have either 0, 1, 2 or 3 cars registered in…

A: Given Sample size (n) =305

Q: The scatter plot shows the number of years of experience, x, and the amount charged per hour, y, for…

A: We need to find the equation of best fit. line equation : y - y1 = [(y2-y1)/(x2-x1)](x-x1)

Q: 5. The following data were obtained in a study of the relationship between the weight and chest size…

A: Correlation coefficient is denoted by r

Q: To determine the relationship between years of education an employed for 5 years were interviewed.…

A: Sample Salary (x) Years of higher education(y) 1 21.4 4 2 18.7 4 3 27.5 5 4 42 8 5 12.6 1…

Q: 7 t What is unique about time series forecasting: the experimental unit is a unit of time it almost…

A: As per Bartleby guidelines I can't answer more than one question per post. Please post other…

Q: For the given scenario determine the type of error that was made, if any .(hint begin by determining…

A:

Q: It is claimed that the average life span of people in rural area is more than 64 years old with a…

A:

Q: oupon payment is received

A: Par Value of Bond is $1000 Coupon rate is 7.5% Yield is 5% Time to maturity is 5 years Bond is sold…

Q: It is known that people in the USA spend on average 16 hours a day using electronic devices with a…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: Researchers are interested to determine if there is a relationship between death anxiety and…

A: Given information: Person Death Anxiety Regionality 1 42 3 2 29 11 3 31 5 4 28 9 5 15 6…

Q: The pregnancy length in days for a population of new mothers can be approximated by a normal…

A: The question is about normal dist. Given : Mean of pregnancy length ( μ ) = 269 days Std. deviation…

Q: A company is interested in estimating the costs of lunch in their cafeteria. After surveying…

A: Given : 95% confidence interval is ($850, $950).

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

A: Solution Given μ0=84 σ =9 Xbar=85.7 n=36

Q: A Manufacturer knows that their items have a normally distributed length, with a mean of 15.1…

A: Here, the random variable follows a normal distribution with µ= 15.1 , σ=  4.4.

Q: Use the given information to find the number of degrees of​ freedom, the critical values x2l and…

A: The answer is attached below,

Q: Big chickens: The weights of broilers (commercially raised chickens) are approximately normally…

A: The answer is attached below,

Q: A slot machine has 3 dials. each dial has 40 positions two of which are jackpot to win the jackpot…

A: Given,  A slot machine has 3 dials. each dial has 40 positions, two of which are jackpot. We have to…

Q: Assume that a sample is used to estimate a population mean u. Find the 80% confidence interval for a…

A:

Q: The table below shows a frequency distribution of marks for 400 students in computer programming in…

A: The question is based on frequency distribution Given :

Q: A college claims that the proportion, p, of students who commute more than fifteen miles to school…

A: Given: A college claims that the proportion, p, of students who commute more than fifteen miles to…

Q: Exit polls, or interviews with voters right after they cast their ballots, are conducted by a…

A: Given information: P(Final election winner) = 0.60

Q: Answer the following :question The marks of students in mathematics are normally distributed with a…

A:

Q: To determine the relationship between years of education and salary potential, 10 persons who have…

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

Q: 3. Describing z-scores Pica is a disorder in which individuals eat substances that are typically…

A: Given that: Population mean, μ=13.2 Population standard deviation, σ=1.2   Hb Level (gm/dl)…

Q: Students sold candy bars for a dollar each as a school fundraiser. The amounts (in dollars) raised…

A: Solution Given That students sold candy bars for a dollar each as a school fundraiser ,the amounts (…

Q: It is claimed that the average life span of people in rural area is more than 64 years old with a…

A:

Q: Task 9: The following table shows a typical output for an analysis with two influencing factors.…

A: Given information: Solution for Fixed Effects Effect Treatment InitHealth Estimate Standard…

Q: Researchers are interested to determine if there is a relationship between death anxiety and…

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

Q: The scatter plot shows the number of years of experience, x, and the amount charged per hour, y, for…

A: Solution-: We want to find, (a) An appropriate equation of the line of best fit? (b) Using (a)…

Q: An article on estimating 28-day strength of concrete considered regressing y = 28-day standard-cured…

A: In the given scenario, a regression equation was given which showed the relationship between the…

Q: Phil Dunphy, a real estate agent, is considering whether he should list an unusual $670,293 house…

A:

Q: wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many subjects are…

A:

Q: 5%. The investor plans to sell the second coupon payment is

A: Par Value of Bond is $1000 Coupon rate is 7.5% Yield is 5% Time to maturity is 5 years Bond is sold…

Q: Determine the probability of obtaining a sum that is divided by 3 without remaining from a ?single…

A: roll a pair of dice  total outcomes = 36 find P(sum is divided by 3 without remaining) = ?

Q: A marriage counselor has traditionally seen that the proportion p of all married couples for whom…

A: As Prof. N. G. Das said "A hypothesis which is tested for plausible rejection is called the Null…

Q: For the following two samples, calculate the corresponding z-score to test whether the two means are…

A:

Q: monthly salaries are shown in the fo 0 Years of higher education 4

A: Given as,

Q: What is the average of the following numbers 2, 5, 8,1?

A: Given data set is 2,5,8,1sample size(n)=4

Q: It is claimed that the average life span of people in rural area is more than 64 years old with a…

A:

Q: The random variables X and Y are independent to each other. The probability density functions of X,…

A: Given the pdf of the independent random variables X and Y as fXx=2x , 0<x<1 fYy=1 ,…

Q: 1. For each day of last year, the number of vehicles passing through a certain intersection was…

A: Given: μ = 375 σ = 25

Q: A Human Resource Trainer in a company claims that a trained workers should be able to finish an…

A: A hypothesis which is tested for plausible rejection is called the Null Hypothesis (typically…

Q: Example: the joint density for the random variables (X,Y), where X is the unit temperature change…

A:

Q: A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults,…

A: For the given table Find all the required probabilities

Q: Coupon payment is re

A: Par Value of Bond is $1000 Coupon rate is 7.5% Yield is 5% Time to maturity is 5 years Bond is sold…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 17.3…

A: GivenMean(μ)=17.3standard deviation(σ)=1.5sample size(n)=10

Q: In a survey of 1001 adults, a polling agency asked, "When you retire, do you think you will have…

A: Given data: n = 1001 X = 530