0 1 0.35 0.26 X p(x) (a) Find P(X ≤ 2) (b) Find P(X > 1) (c) Find μx (d) Find o 2 3 0.19 0.11 4 0.09

Q: Suppose Xhas the probability distribution given in the table. Given that X)-2.8, find a and b. 2 X…

A: Probability distribution table of X is; x 1 2 3 4 P(X=x) 0.2 a 0.3 b

Q: If X is normally distributed with mean u and variance o2, it is generally described as x~ N(1,0²).…

A: If X be a normally distributed.X~N(μ,σ2)Given; X~N(2,9)So, mean(μ)=2 and standard deviation(σ)=3

Q: 22. What indicates a positive correlation on a scatter plot graph? a decrease in the predictor and…

A: An increase in the predictor and outcome variables indicates a positive correlation on a scatter…

Q: 17 and 18: Suppose that the systolic blood pressures of men age 18 to 29 years vi Tuva normal…

A: Please note that as per our guidelines if multiple questions are posted we can answer the first…

Q: November 2017 Gallup Poll of 10281028 U.S. adults found that 627627 are satisfied with the total…

A: Total =1033 Satisfied = 627 Margin of error = +-4%

Q: A conservative decision maker should choose which decision? Decision dl d2 d3 d4 d4 d1 d2 d2 or d3…

A: Coservative decision means maximin decision also. First we will make table,

Q: Suppose small business profit per week in a city, has been, on average, $35,000 per week over the…

A: Population mean μ=35000, sample size=n=25, sample mean x̄=38600, sample standard deviations s=4600…

Q: (a) If we assume the mileages are normally distributed, then approximately what percentage of all…

A: given data,μ = 22000σ= 3000a) mileges are normally distribution,  p(16000 < x < 28000) = ?

Q: Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of…

A: Let X: scores of an IQ testX have a bell shaped distribution with mean(μ)=100 and standard…

Q: n a the normally distributed variable X with mean = 15 and standard deviation = 2.5, find: The…

A: X is randomly distributed with a mean of 15 and a standard deviation of 2.5; μ=15σ=2.5

Q: d-Hd Evaluate t = - for d= -0.375, μ = 0, så = 3.623, and n = 8. Sd √n

A:

Q: 2 F= 21 51 Evaluate F =— for s₁ = 5.97 and s₂ = 5.41. 2 22 52 (Round to two decimal places as…

A: Here we have the values of s1 and s2 that is the standard deviations.  s1 = 5.97 and s2=5.41. We…

Q: The World Bank records the prevalence of HIV in countries around the world. According to their data,…

A:

Q: selected person is a runner (the event R) is P(R) = 0.2. The probability that a randomly selected…

A:

Q: thats what i got aswell when i worked it but its saying that the answer is incorrect

A: Solution To fund the probability we will use Bayes theorem.

Q: PVC pipe is manufactured with a mean diameter of 1.01 inch and a standard deviation of 0.003 inch.…

A: Given that.   X~N( μ , ?^2 )   μ=1.01     , ?=0.003 , n=9   Z-score =( x - μ )/?

Q: Find the proportion of Normally distributed observations with a zz-score below -1.53.

A: It is given that the z-score below -1.53.

Q: 4. From visual inspection alone, the standard deviation of the height distribution is: A. Greater…

A: part 4 Range= maximum value-minimum value Range=81-59=22 SD=22/4=5.5 (or a bit greater) This is less…

Q: Q2: The number of cracks in a section of interstate highway that are significant enough to require…

A: The question is about Poisson distribution  Given : Mean no. of cracks per mile  = 3   To find : a )…

Q: he table below shows a probability density function for a discrete random variable X, the number of…

A: Ans#- The table below shows a probability density function x P(x) 0 3/20 1 1/20 2 1/4 3…

Q: Listed below are amounts of​ strontium-90 (in​ millibecquerels, or​ mBq) in a simple random sample…

A: The given data shows the amounts of​ strontium-90.

Q: If I have 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB…

A: Given that, Out of 50 people  21 are having O type blood  22 are having A type blood  5 are having B…

Q: In regression, the larger (stronger) the correlation between Y and X, the 1. smaller the standard…

A: There is a stronger correlation between Y and X.

Q: The following data on x = score on a measure of test anxiety and y = exam score for a sample of n =…

A:

Q: (a) For each event in the table, check the outcome(s) that are contained in the event. Then, in the…

A: It is given that the slice numbered 3 is grey, and the slices numbered 1, 2, 4, 5, 6, 7, 8, 9, and…

Q: (1) Multivariate model: ŷ = ß0 + Â1x1 + ß2x₂ (2) Univariate model: y = 50 + 51x1 IC <C

A: Angrist Bias Confounding Omitted variable bias Residual Variation heteroskedasticity…

Q: A, B, C, D and E go on a holiday by car. (a) In how many different ways can they choose the seats in…

A: Given that, A,B,C,D and E are going on a holiday in car. Total members =5

Q: 1. Assume that a fair die is rolled. The sample space is {1,2,3,4,5,6} and all of the outcomes are…

A: Ans#-1. Assume that a fair die is rolled then the sample space is {1,2,3,4,5,6}              and all…

Q: Find the value of zα.   z0.09   z0.09=enter your response here ​(Round to two decimal places as​…

A:

Q: Date: Question You roll dice (a) what of Probability is the total number possible outcomes of this…

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

Q: A soft-drink bottling company fills and ships soda in plastic bottles with a target volume of 354…

A: Given: Q1 = 356 Q2 = 357 Q3 = 360 Formula Used: Interquartile range IQR = Q3 - Q1 Outlier limits =…

Q: A lottery that sells 150,000 tickets has the following prize structure: (1) first prize of $1000…

A: Data is given for 1st,2nd, 3rd, 4th prizes Probability = favorable outcomes /total Variance =…

Q: For a sample of 49 items from a normally distributed population for which the standard deviation is…

A:

Q: A university is made up of five schools: Liberal Arts, Sciences, Engineering, Business, and…

A:

Q: Use z scores to compare the given values

A:

Q: Months 1 2 3 14 885 Using exponential smoothing, with a smoothing constant of 0.14, forecast the…

A: The number of customers in a month is given.

Q: 03: PVC pipe is manufactured with a mean diameter of 1.01 inch and a standard deviation of 0.003…

A: Answer: From the given data, Mean (μ) = 1.01 Standard deviation (σ) = 0.003 For a random sample of…

Q: The following table represents a grouped frequency distribution of the number of hours spent on the…

A: Grouped frequency distribution: In this style, the information is organised and divided into…

Q: What is the difference between goodness of fit and test for independence. I know that goodness of…

A: We need to answer, What is the difference between goodness of fit and test for independence.

Q: 1. Reports suggest that 62.6%% of United States' homes have a fireplace, 36.5% have a garage and…

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

Q: Which ONE of the following random variables is quantitative and continuous? A. The number of online…

A: The question is about types of variable Introduction : There are two types of variable : 1 )…

Q: A government agency reported in a comprehensive survey, released every three years, that the average…

A: a. The data shows the incomes in 2001 and 2004.

Q: Find the probability of: 1. a jack 2. a king of red color 3. a card of diamond

A: We know that There are 52 cards in the deck divided into two colour i.e red(26) and black (26).…

Q: Annie is concerned over a report that "a woman over age 40 has a better chance of being killed by a…

A: Assume that p is the population proportion of getting married for a never-previously-wed,…

Q: > A table used to show the relationship between two variables. The sum of the probabilities for this…

A: It is given that the definitions of different concepts. Here, need to find out the correct choice…

Q: (a) p(F and G)= (b) p(F or G)= (c) p(F | G)=

A: Given that  F is female,  G is green  Total = 173 F and G = 14  F = 93  G = 17 Note : According to…

Q: A club with 55 college students is doing volunteer work this semester. Each student is volunteering…

A: It is given that a club with 55 college students is doing volunteer work this semester.

Q: 62 78 The mean is: O A. 70.8 B. 72.6 O C. 78.0 OD 648 84 62 72 78 54 60 78 80

A: given data 62,78,84,62,72,78,54,60,78,80

Q: The data below shows the number of emails received per day at work by a professor during 16…

A: Given: n = 16 Formula Used: IQR = Q3-Q1 Q1 = n+14thterm Q3 = 3(n+1)4thterm Outlier limits =…

Q: An internet research company surveyed 95 online shoppers, each of whom made one purchase today. The…

A: Given information- We have given that an internet research company surveyed 95 online shoppers, and…