Two fair dice are thrown. Find the probability that the sum is greater than 7. a. 5/11 b. 7/18 c. 5/12 d. 4/9

Q: Based on previous studies of school children who were vaccinated and contracted the flu, the time in…

A: As per our guidelines we can solve first multiple-choice question and rest can be reposted.…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: The readings are normally distributed with mean of 0°C and SD of 1.00°C μ=0σ=1

Q: Q1/ Grades in statistics class are weighted as follows: Tests are worth 50% of grade, homework is…

A: Here Given   Grades in statistics class are weighted as follows: Tests are worth 50% of grade,…

Q: A leading magazine (like Barron's) reported at one time that the average number of weeks an…

A:

Q: Find the P-value for a left-tailed hypothesis test with a test statistic of z= -1.17. Decide whether…

A: Given data: Test statistic: Z = -1.17 Significance level = 0.10 Left tailed test To find: P value…

Q: nean smaller for houses owned by teachers? The data how the results of a survey of 16 teachers who…

A: Given See the give data in excel screen shot

Q: In soccer, serious fouls result in a penalty kick with one kicker and one defending goalkeeper. The…

A: It is needed to test the claim that whether the direction of the kick is independent of the…

Q: If a regression equation is used, when are predictions not meaningful?

A: A regression equation is used in statistics to calculate the  relationship, which, exists between…

Q: A distribution of values is normal with a mean of 137.5 and a standard deviation of 37.8. Find P57,…

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Q: (a) What is P(X = 1 and Y = 1)? P(X = 1 and Y = 1) = | (b) Compute P(X ≤ 1 and Y S 1). P(X ≤ 1 and…

A: HERE GIVEN , A service station has both self-service and full-service islands. On each island, there…

Q: A forward contract exists for a unit of two-year government securities with delivery to take place…

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Q: Find the probability that an item drawn at random from a normal distribution with Mean 5 and S.D. 3…

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Q: Determine the variance of Z.

A: Helpful formulas (i)VaX=a2VX(ii)VC=0,where c is the constant(iii)VaX+ bY=a2VX+ b2VY

Q: According to the study, the average number of hours that the student spent studying per week in the…

A: From the provided information, Mean (µ) = 56 hours Standard deviation (σ) = 14 hours X~N (56, 14)

Q: The mean value of land and buildings per acre from a sample of farms is $1700, with a standard…

A: Empirical rule: The probability of the observation lies within 1 standard deviation of the mean,…

Q: Find a raw score. What is the raw score? (

A: Here given,  The mean for a data set is 66. The standard deviation is 2 , and the z score is 0.55.

Q: A study measures the dimensions of adult penguin bills for three species (Adelie, Gentoo and…

A: (1) Let the independent variable X be bill lengths for penguins Let the dependent variable Y be bill…

Q: Jesse scored a +12 while golfing and, 18 points while playing basketball. The statistics for his…

A: The mean and standard deviation of sport golfing are 14.2 and 3.2, respectively.

Q: Assume that population mean is to be estimated from the sample described. Use the sample results to…

A: Given : Sample Size, n = 64 Sample Mean, x̄ = 77 sample standard…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1038 dollars. Assume the…

A: The provided information is…

Q: For a standard normal distribution, find the z-value that goes with a right tail area = 0.1789

A: Given Right tail area=0.1789

Q: (a) Identify the null hypothesis and alternative hypothesis. OA. Ho: μ#3.1 H₂: H=3.1 OD. Ho: H≤3.2…

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Q: 56 56 44 54 42 35 6 26 43 17 43   7 30 28 58 19 27 37 44 79 56 57

A: The data is given below 56 56 44 54 42 35 6 26 43 17 43 7 30 28 58 19 27 37 44 79 56 57

Q: The consumption function captures one of the key relationships in economics. It expresses…

A: Solution Given information is The consumption function captures one of the key relationships in…

Q: The sample mean is x = Udla Set. Use 70 as the midpoint for "65 years and over." (Round to two…

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Q: P E 13.2 1 In a study of variables that affect productivity in the retail grocery trade, W.S. Good…

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Q: Part 2 of 2 (b) Find the area under the standard normal curve to the left of z= -0.94. The area to…

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Q: # 3 3) The time in hours during which an electrical generator is operational is a random variable…

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Q: X 2 1 0.05 0.05 0.05 0.10 0.00 0.20 g (x) 0.10 0.35 e. Determine the standard deviation of X. f.…

A: Marginal density function of X is X 1 2 3 g(x) 0.10 0.35 0.55   Marginal density function of…

Q: i. j. Determine the correlation Determine the covariance of X and Y. of X and Y.

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Q: A group of randomly selected adults were asked if they are in favor of or against cloning. The…

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Q: Given that P(A) = 0.7, P (A/B) = 0.7, P(A∩B) notation same as P (A and B) = 0.42, find  the…

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

Q: An organization surveyed 536 high school seniors from a certain country and found that 284 believed…

A: Given: n=536 x=284 H0:p=0.5 H1:p>0.5

Q: At an assembly plant for 4WD car, routine monitoring of the quality of welds yields the following…

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Q: interviewed were unaware that maintaining a healthy weight could reduce the risk of stroke. If 20…

A: Given : Probability of success,p = 0.90

Q: The red blood cell counts (in 10 cells per microliter) of a healthy adult measured on 6 days are as…

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Q: √x² +²23,0 < x < 1,0 < y < 2, f(x, y) = elsewhere. 0, b. g(x) = 2x (x + 1/3), h(y) = 1/3 + y/6. a.…

A: E(XY)=∫y∫xxy.f(x,y)dxdy

Q: Q4/ The average on a statistics test was 78 with a standard deviation of 8. If the test scores are…

A: It is given that: μaverage score=78σstandard deviation of scores=8

Q: A binomial experiment with probability of success p=0.4 and n=5 trials is conducted. What is the…

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Q: of time (in years) it took a random sample of 32 former smokers to quit smoking permanently are…

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Q: Identify if the following correlation. Describe if it is strong, weak, or no correlation. Then…

A: Given: n = 29 Formula Used: Correlation coefficient r = n∑XY-∑X∑Yn∑X2-∑X2n∑Y2-∑Y2

Q: Suppose the distribution of scores of 1000 students who take a standardized intelligence test is a…

A: Given: n = 1000 μ = 450 σ = 35

Q: 71 6,911,876 07 834,541 26 757,364 83 661,428 91 485,851 EDEREE

A: Total death caused in the population which is divided by population size where age specific rate can…

Q: One personality test available on the World Wide Web has a subsection designed to assess the…

A: Given that  Suppose the true mean score among the general population on the subsection is 14. Fill…

Q: You would like to​ "build-your-own-burger" at a​ fast-food restaurant. There are nine different​…

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Q: Stress at work: In a poll about work, 60% of respondents said that their jobs were sometimes or…

A: Given P=0.60 n=14

Q: Foodland Supermarket 45% of customers pay by credit card. Find the probability that  in a randomly…

A: Here Given  At Foodland Supermarket  proportion of  customers pay by credit card= p = 0.45  No of…

Q: Pat received the following grades in four classes. What was Pat’s percentile rank in his English…

A: here given  pat's grade in each subject and mean and standard deviation for each Subject  here for…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

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Q: Calculate the mea Ag 5 6

A: