5. From 12 observations the following results were obtained Σ x =125 , Σ y =437, Σxy =4997,Σ x' =1397, Σ y’ =18257 Find a) the product moment correlation co- efficient, b) the regression line equation y=a+ bx
Q: If a r. v. x Geo(1/5), a m. g. f. of x as below: 9t? Mx(t) = est+1 for co< t < 00⁰. - True O False
A:
Q: A survey of recent high school graduates regarding literature that they studied during their high…
A:
Q: Let x be a c.r.v., the E(x4) can be founded by xf(x) dx. O True False
A: Given problem Given that Let x be a c.r.v., the E( x4 ) can be bounded by ∫-∞∞xf(x) dx Ans)…
Q: b. If your answer in (a) is no, explain why it cannot be the case. Otherwise, obtain the…
A:
Q: Question 16 options: Determine the number of different 3-people or 4-people committees that can be…
A:
Q: Find the area under the standard normal curve to the right of z=1.44z=1.44. Round your answer to…
A: GivenThe standard normal curve to the right of z=1.44
Q: $10,000, should the investor purchase t
A: Rezoning Approved Rezoning Not Approved Purchase 590 -160 Do not Purchase 0 0 Let H =…
Q: Suppose a jar contains 6 red marbles and 36 blue marbles. If you reach in the jar and pull out 2…
A: Solution
Q: then the mean of x and y (E(xy)) is
A: Here use given joint distribution of x and y
Q: Dr. Groppe, a professor in the School of Computing at Klaggen University, is using a standardized…
A:
Q: number
A: Given, The average number of internet interruptions in Barangay Alabang (λ) = 4
Q: The processing time for the robogate has a normal distribution with mean 21 sec and standard…
A:
Q: 4. In a random check on an assembly line, the probability of finding a defective item is 0.005.…
A: Givenprobability of finding a defective item (p)=0.005n=15Let "x" be the no.of defective…
Q: Statistics Canada data for 2011 shows that the number of residents in Edmonton between the ages 20…
A: The total number of residents between the ages 20 and 34 was 159445.
Q: WITH COMPLETE SOLUTION A six-sided die is rolled 15 times. What is the probability of getting value…
A: Given that ; A six sided die is rolled the probability of the value 5 comes = 1/ 6 Sample size (n)…
Q: 1. Suppose you open a bag of M&Ms and count the number of M&Ms you have of each color. Suppose there…
A: Disclaimer: “Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: Hila City typically has rain on about 16% of days in February. a. What is the probability that it…
A: Given,p=0.16q=1-0.16=0.84no.of days in the month of February(n)=28Let X= no.of days will rain in the…
Q: A materials engineer wants to understand the relationship between the strength of plastic cases and…
A: Given: The data given is as shown below Temperature (x) Strength (y) 185 5150 183 5125 187…
Q: 9. One merchant has seven Asava horses (A), a second has nine Haya horses (H), and a third has ten…
A: Given, One Merchant has seven Asava horses (A), a second has nine Haya horses (H) and third has ten…
Q: PART III. Consider the data below: 13, 12, 13, 21, 16, 13, 16, 18, 3, 15 1. Compute the mean 2. Find…
A:
Q: Kennel 1: 6 Labradors, 2 Huskies, 3 Great Danes Kennel 2: 5 Great Danes, 2 Labradors, 4 Huskies…
A: Given, Kennel 1: 6 Labradors, 2 Huskies, 3 Great Danes Kennel 2: 5 Great Danes, 2 Labradors, 4…
Q: Find the total of the areas under the standard normal curve to the left of z₁ = -2.33 and to the…
A:
Q: uppose X and Y are random variables with joint PDF fx,y(x, y) = 4xyI(0,1) (x) I(0,1) (y) et U = ln X…
A: Solution
Q: Let random variable X be uniformly distributed on the interval [-T, π]. We define random variables Y…
A: Solution: From the given information, X follows uniform distribution with parameters a = π and b =…
Q: Show that the function defined satisfies the properties of a pmf. Show that the formula (4.1) of…
A:
Q: Choose a sample of 4 cards from 6 white(w) and 10 black(b) cards one by one without replacement. The…
A:
Q: If X is a Binomial random variable with parameter (n, p), where 0< p <1, then as goes from 0 to n,…
A: Binomial distribution is given by
Q: Suppose that in a popular restaurant, 4 people can sit around a lazy susan table (a round table with…
A: Permutations and combinations
Q: For a fixed x (0<x< 1), suppose Y has a probability mass function f(y|x)=< ²²0 - [x²¹(1-x)…
A:
Q: Manny Pacquio and Juan Manuel Marquez fought 4 timesdebate of which Manny wins 2, 1 is won by…
A:
Q: The following function is cumulative distribution function. 0 x < -5 0.30 -5 ≤ x < 35 F(x) 0.80 35 <…
A: Cumulative distribution function is given. We have to calculate mentioned probability.
Q: 6. Assume a joint pdf given as [λxy², 0≤x≤ y ≤1 fxx2,y)= (0, otherwise and let B = {Y≥ 2X and W=X+Y…
A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case…
Q: You want to know the percentage of utility companies that earned revenue greater than 94 million…
A: Given Mean(μ)=60standard deviation(σ)=15
Q: गुढ Studio Help K Get a similar question You can retry this question below Ages Number of students…
A:
Q: $77. Determine the odds against the event occurring. 1. The probability of an event occurring is
A: Comment: As per the our company guidelines we are supposed to answer only one question. Kindly…
Q: A family has 5 children and the probability of having a girl is Find the probability that the family…
A: Let X: number of boys in a familyX~binomial(n,p)where n=5 and p=1-12=12 (probability of having a…
Q: 2. An emergency committee consisting of 12 health's officer staffs is chosen from 10 doctors and 12…
A:
Q: Exercise Suppose that X is a continuous random variable whose probability density function is given…
A: Given; X be any continuous random variable. and pdf of X is given below…
Q: For items 10-11. Consider the situation given below. A card is randomly drawn from a standard 52…
A: Given data: A card is randomly drawn from a standard deck of cards. Total Cards deck = 52
Q: The average number of classic comic books sold per week at your store is 28. What is the probability…
A: Given : mean , μ= λ = (28*3)/7 = 12
Q: ANSWER WITH COMPLETE SOLUTION The number of typing errors on a page follows a Poisson distribution…
A:
Q: . How many students obtained scores between 74.5 to 84.5? . How many students obtained scores…
A: Here Given The frequency curve of the Scores obtained by students
Q: A random sample of 6 steam boiler pressure has a mean of 760 psi (pound per square inch) with its…
A: From the provided information, Sample size (n) = 6 Level of significance (α) = 0.05
Q: Each member of a random sample of 19 business economists was asked to predict the rate of inflation…
A:
Q: Use the following information to answer the next question. A committee of 3 people is to be randomly…
A: Probability is calculated using the favorable cases and the total number of cases. Probability takes…
Q: * Let the sample space be positive, real numbers and the events A and B as follows: A = {x|x…
A: The given evets is A={x |x<82.5} B={x |x> '62.5} a. All positive The real number greater than…
Q: The probability distribution of the discrete random variable X is given below. 3 3-x f(x) = QO'@'* ,…
A: Given f(x)=(3x)(14)x(34)3-x , x=0,1,2,3
Q: Discrete Probability Distributions Suppose the efficacy of the covid vaccine is about 80%. Assume…
A: Given,n=10p=0.8q=1-0.8=0.2Let X=no.of exposed person will get covid in a sample of 10…
Q: If x andy are stochastically independent r.v.³ and E(x) = 4, E(y) = then the mean of x and y (E(xy))…
A: Solution
Q: Adam Sucrose is a market trader and counts the number of customers he sells to every day. The daily…
A:
Step by step
Solved in 3 steps
- From 8 observations the following results were obtainedΣXΣ =544, ΣY =552, ΣXY = 37560, ΣX^2 =37028, ΣY^2 =38132. Find i) the correlation co- efficient, ii) and, state the relationship, iii) the regression line equation = Y=mX+bY=mX+bFrom 9 observations the following results were obtainedΣXΣX =824, ΣYΣY =750, ΣXYΣXY = 69540, ΣX2ΣX2 =67024, ΣY2ΣY2 =59130. Find i) the product moment correlation co- efficient, ii) and, state the relationship. ii) the regression line equation = Y=aX+bY=aX+bThere is a relation between the following variables as y = 1 / (a * x ^ b) (x ^ b means x over b) a) Calculate the correlation coefficient and interpret the degree of the relationship? b) Estimate the y-value for x = 4.3 and the x-value for y = 0.90 by obtaining the regression equation
- A fuel company wants to find the functional relation between the amount of gas it sells for heating and the daily temperature. Given the values for 10 observations ∑x= - 50, ∑x^2 = 626, ∑y^2 = 6432 ∑y= 222, ∑xy= —1743 for the daily average temperature and gas sales (in thousand liters). a) Obtain and interpret the correlation coefficient for the variables.b) Set up the regression equation and interpret the coefficients.c) Find R2 and interpret.d) When the temperature is 10 degrees, please observe the gas sales amount.Q1-Q5: a) Find the value of the line ar correlation coefficient r b) Find the critical values ofr from table A-6 using x= 0.05 c) Determine whether there is sufficient evidence to support a claim of a linear correlation Between the two variables. d) Find the regression equation, e) Letting the first variable be the predietor (x) variable, find the indicated predieted value. Q1. Altitude and Temperature: Altitude 3 10 14 22 28 31 33 ( thousands of feet) Temperature ( °F) 57 37 24 -5 -30 -41 -54 At 6.327 thousand feet, the author recorded the temperature. Find the best predieted temperature at that altitude. How does the result compare to the actual recorded value of 48°F?From 12 observations the following results were obtained Σ x =125,Σ y =437, Σxy =4997,2 x2 =1397, Σ yi =18257 Find a) the product moment correlation co- efficient, b) the regression line equation y=a+ bx
- Find the best predicted value of y corresponding to the given value of x. ^ 21) Six pairs of data yield r = 0.789 and the regression equation y = 4x - 2. Also, y = 19.0. What is the best predicted value of y for x = 5? A) 18.0 B) 18.5 C) 19.0 D) 22.0 21)A regression between foot length(response variable in cm) and height (eexplanatory variable in inches) for 33 students resulted in the following regression equation: y^=10,9+0,23X one student in the sample was 73 inches tall with a foot length of 29cm.What is the predicted foot length for A)33cm B)17,57cm C)27,69cm D)29cmFind the equation of the regression that model the relationship between the weight of mail and number of order using HYPERBOLIC EQUATION. Compute for the correlation coefficient using PEARSON PRODUCT MOMENT CORRELATION COEFFICIENT (PPMCC).
- A regression was run to determine if there is a relationship between hours of TV watched per day (xx) and number of situps a person can do (yy). The results of the regression were: y=ax+ba=-1.392b=32.952r2=0.527076r=-0.726Use this to predict the number of situps a person who watches 2 hour(s) of TV can do, and please round your answer to a whole number.The grades of a class of 9 students on a midterm report (x) and on the final examination (y) are as follows: Give the following: a. linear regression line and equation b. computation of the coefficient of determination ?^2 c. Computation of the coefficient of correlation ? d. Estimate the final examination grade of a student who received a grade of 85 on the midterm report.Consider the model Ci= B0+B1 Yi+ ui. Suppose you run this regression using OLS and get the following results: b0=-3.13437; SE(b0)=0.959254; b1=1.46693; SE(b1)=0.0697828; R-squared=0.130357; and SER=8.769363. Note that b0 and b1 the OLS estimate of b0 and b1, respectively. The total number of observations is 2950. The number of degrees of freedom for this regression is A. 2950 OB. 2948 OC. 2952 OD. 2