Example The number of males in each 106 eight-pig litters was found, and they are given by the following frequency distribution: Number of males per litter 4 5 6 7 8. Total Frequency 5 22 25 26 14 4 1 106 Assuming that the probability of animal being male or female is even (i.e., p = q = ) and the frequency distribution follows the binomial law, calculate the expected frequencies of the nine classes. Find also the value of x to test the goodness of fit. %3D

Q: Which of the following statements is NOT true about Central Limit Theorem? A. The population mean an...

A: The aim of the objective is to identify the appropriate option, by interpreting the Central Limit Th...

Q: A random variable X has a uniform distribution over (-3,3). Compute i) P(X=2), P(x K) =}

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Q: A distribution of values is normal with a mean of 50 and a standard deviation of 25. From this distr...

A: GivenMean(μ)=50standard deviation(σ)=25sample size(n)=31

Q: The standard error of the regression is essentially a measure of: A. The standard deviation of the i...

A: Since you have posted multiple questions, as per our guidelines, we have provided answer for first q...

Q: 11. A skilled typist on routine work, kept a record of mistakes per day during 300 working days. The...

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Q: A random sample of 14 cigarettes of a certain has an average nicotine content of 4.1 milligra and a ...

A: Given data,n=14Mean x=4.1sd     s=2.5What is the lower bound of 99% confidence?

Q: The juror pool for an upcoming trial contains 100,000 individuals in the population who may be calle...

A: Given : The juror pool for an upcoming trial contains 100000 no. of individuals in the population wh...

Q: On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with ...

A: We have given that Population mean( µ ) = 100 Sample size (n) = 21 Sample mean (x̅) = 98 Standard de...

Q: The following data are from a research study comparing two treatment conditions. Do the data indicat...

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Q: Suppose Y is distributed with mean=80 and variance=100. You obtain a large number of samples each of...

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Q: Given that (AB) = 256, (aB) =768 ,(Ab) =48 and (ab) =144 find whether a and b are associated or indi...

A: To conclude, if the attributes 'a" and "b" are independent, the formulated Yule's Coefficient of Ass...

Q: Calculate the t-statistic for each of the following

A: The objective is to calculate t statistic  

Q: The sum of deviation of a certain number of item measured from 4 is 72 anf the sum of deviationd of ...

A: We have to find number of observations and mean.

Q: A recent study found that 40% of all people over age of 62 is selected. If a random sample of 5 peop...

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Q: Which of the following is NOT commonly used as inferential tool?

A: Inferential statistics deal with data taken from a sample and makes inferences about the larger popu...

Q: for instance to figure out how popular a given candidate is, a common trick is to just er they suppo...

A: *Answer: 

Q: required: Find the summation of y raised to 2 Find the summation of x raised to two Find the summati...

A: We have given that  The data of a person’s age and the number of magazines to which that person subs...

Q: Problem 1: Asking Embarrassing Questions, Politely When doing polling, for instance to figure out ho...

A: Given information: 5) x = 70 n = 100 p^N=xN=70100=0.70

Q: ________________ draws from the box, there is more than 50% chance for a red marble to appear at lea...

A: here given box contains 2 red marbles and 98 blue ones so total 100 marbles  Here Selection is witho...

Q: Example 13. Two variables gave the following data: X = 20, Y 15. 0. 3, r = 0.7. %3D = 4, o. %3D Obta...

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Q: Which of the following is not among the steps in Hypothesis Testing?

A: Here We will list the Steps for Hypothesis Test

Q: Example The first four central moments of a distribution are 0, 2.45, 0.7 and 18.75. Calculate the m...

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Q: Ho:p = 0.42 H1:p + 0.42 You obtain a sample of sizen = 695 in which there are 311 successes. What is...

A: Any assumption about the parameter or probability function is known as Hypothesis testing. For the g...

Q: coating is taken from a week's output and the thickness (in millimeters) of these observations are s...

A: We have given that,  The data set is,  19.5, 21.7, 18.8, 20.7, 21.4, 19.1, 19.5, 20.1, 20.6 Then,  W...

Q: The PDF of random variable W is c(w + 5), -5 <w < 7 fw (w) %| 0, otherwise

A: Given,f(w)=c(w+5);  -5≤w≤70;  otherwise

Q: čach of 20 lots of rubber belts contains 2000 rubber belts. Number of defective rubber belts in thos...

A:

Q: (13) Let a, b, c, d be constants. If all of the following covariances are well defined then show tha...

A: Solution

Q: Risk taking is an important part of investing. In order to make suitable investment decisions on beh...

A:

Q: Suppose the lengths of human pregnancies are normally distributed with u = 266 days and o= 16 days. ...

A: Given,mean(μ)=266standard deviation(σ)=16

Q: The following data relate to size of shoes sold at a store during a given week. Find the average siz...

A: x frequency (f) d =( X - A)/A = (X- 0.8)/0.5 A =8,h= 0.5 f.d 4.5 1 -7 -7 5 2 -6 -12 5.5 4 -5 -...

Q: QUESTION 17 A scatter plot of the number of doctors and the number of who report they have healthy e...

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Q: Example Two unbiased dice are tossed. Let w denote the number on the first die and r denote the numb...

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Q: f 12 = 0-5, r31 = 0-3, 123 = 0-45, find R3-12.

A: The objective is to find R3.12

Q: The mean of 200 items is 48 and their Standard Deviation is 3. Find : (i) The sum of all the items, ...

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Q: 5. between z 0. 92 and z = 1. 75 6. to the right of z 1. 32

A: Given5)between z=-0.92 and z=1.75

Q: different colours a red ball is drawn. Find the probability that the statement is true. ?

A: Here Given  Probability of A speaks truth=P(A)=23 So,Probability of A speaks Lie=P(A')=13 Probabilit...

Q: II. the probabilmies 1. P(0<z<1.44 ) 2. P(-2.81 <z<0) 3. P (z<-0.73 ) 4 P(-3.10 <z<1.90) 5. P(1.13 <...

A: 4)P(-3.10&lt;Z&lt;1.90)=?

Q: III. Solve the following 1. Assume that the time a student stays in school is normally distributed a...

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Q: For a population with mean of 50 and standard deviation of 8, what is the raw score that corresponds...

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Q: followed for 24 months from date of diagnosis. Results are shown below for individuals who were cens...

A: Given the follow up data for 24 months from date of diagnosis as Time (Months) Event 2 D...

Q: Let X be a continuous random variable with the pdf f(r) = 2r, 0 < ar < 1 and zow. We also define Y -...

A: The pdf of X is given by, f(x)=2x, 0&lt;x&lt;1 The CDF of X is given by, F(x)=0, if x&lt;0       =∫0...

Q: If a set of data has a very weak negative correlation, the residual values will be

A: here use concept of regression and residual and correlation

Q: Test the hypothesis that mean is less than 1500. Use the 1% level of significance. Would your conclu...

A: Given: Scores, X 1561 1554 1536 1531 1523 1518 1515 1511 1506 1500 1499 1...

Q: Sind the range of weight of 10 students from the following : 41 11 14 65 . 73 84 53 35 71 55

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Q: compute the probability Of randomly Selecti ng a aueen or a biack card from a standard deck of cards

A: A deck consists of 52 cards in which 26 are black and 26 are red There are 4 queens in which 2 are b...

Q: t was believed that 25% of the students have internet connection at home. How large a sample is nece...

A:

Q: What are the odds that a randomly selected child has been vaccinated

A: It is given that P(vaccinated) = 85% = 0.85

Q: Consider a regression setting with input data XER® following a Gaussian distribution X~N(4, E). The ...

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Q: Answer with graph   1. On a certain standardized vocabulary test, the distribution of means has a ...

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Q: The minute duration of a random category of dramas in Netflix are the following: 93, 83, 76, 92, 77,...

A: Data given  93,83,76,92,77,81,78,100,78,76 Estimate of population variance=S2  Estimate of populatio...