If a string, 1 m long, is cut into 2 pieces at a random point along its length, what is the probability that the longer piece is at least twice the length of the shorter?

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Q: A poll conducted in 2013 found that 52% of U.S. adult Twitter users get at least some news on Twitte...

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Q: If n=6 and mean= .40 , what is the probability that X>1?

A: Given,n=6 , mean=0.40A random variable X~Binomial(n, p)

Q: A hospital wants to be 95% confident that its error is less than two hours in estimating the average...

A: Here given margin of error less than 2 hour Confidence level = 95%

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A: The given graph is histogram of weight gained for female while pregnant.  Where weight gained is rep...

Q: Let Y1, Y2, Yn be a random sample from a Normal distribution with mean µ and variance o?. T · , (n-1...

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Q: Suppose a jar contains 19 red marbles and 10 blue marbles. If you reach in the jar and pull out 2 ma...

A: Given that : A jar contains  Red marbles = 19 Blue marbles = 10  Total marbles = 29   By using the c...

Q: Some manufacturers claim that non-hybrid sedan cars have a lower mean miles-per-gallon (mpg) than hy...

A: Given that, Some manufacturers claim that non-hybrid sedan cars have a lower mean miles-per-gallon (...

Q: TABLE A shows the number of success data obtained from a standard and new procedure of bio engineeri...

A: We have given,  x1= 73 n1= 120 x2= 101 n2= 120 significance level, 0.05

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Q: Given the following data: 3 4. 8 2. 10 15 8 9. 6. 11 15 Obtain the two regression equations and calc...

A: Given data is  x 5 3 7 4 8 2 10 6 8 7 9 15 y 8 6 8 5 9 6 8 5 11 7 8 15  

Q: If X is uniform distributed over (0, 10), calculate that (i) P(X 7) (iii) P(1 < X < 6).

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Q: The following information was obtained from independent random samples. Assume Normally distributed ...

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Q: Choose the variable that is unlikely to be correlated with the number of teachers in a city.    opti...

A: Option A is the answer. Explanation : Here we are talking about number of teachers,but in option A t...

Q: ) (i) What is a simple hypothesis? Define the terms size and power for a test of one simple hypothes...

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Q: Four different designs for digital computers circuit are being studied to compare the average amount...

A: Given: Output of ANOVA Table MSE=73.20N=20k=4α=0.05

Q: i) Let X be a random variable with the PDF f(x: 0) =e-(1-", 00, S(x; A, jµ) = { ^†" -e/", x0 and u> ...

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Q: (d) Find the probability that no tires have low air pressu The probability that no tires have low ai...

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Q: Intelligence test given to two groups of boys and girls gave the following information : Mean score ...

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Q: Additive property: Sum of two independent Poisson processes is a Poisson process.

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Q: Mixed curve is a type of frequency curve True False O

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Q: A population has mean u=23 and standard deviation o=7. Round the answers to two decimal places as ne...

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Q: Choose the scatter plot that you would least likely model the relationship using a linear model. Que...

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Q: What is the probablity that a customer will pay with a credit card?    B) A customer did not pay w...

A: Let us define some events A : the purchase is more than $5 B : the purchase is $5 or less. E : the c...

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Q: lew Saved to this PC O Search (Alt+Q) Fab References Mailings Review View Help an contain viruses. U...

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Q: A researcher hypothesized that children's cholesterol levels may be affected by educating their pare...

A: In hypothesis testing, there are always two hypothesis. These are null and alternative hypothesis. T...

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Q: Why is the null hypothesis for regression usually B- 0?

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Q: Suppose that 20% of the people in a large city have used a hospital emergency room in the past year....

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Q: Twenty years ago, Juan Medina and Bertha Zenith got married. The Medina-Zenith family's biggest life...

A: P(Having a boy) = 1/2, P(Having a girl) = 1/2 P(Having atleast one Girl) = 1 - P(Having no girl) P(H...

Q: There are two series of index numbers, P for price index and S for stock of a commodity. The mean an...

A: Given that,       r=0.4 The mean and standard deviation of P is given by      P¯=100      sP=8 The m...

Q: Using the table above, answer the questions below A) What is P(A'|B)? B) What is P(B|A)? C) What is ...

A: From given table, P(A) = 86/129 P(B) = 75/129 P(A' and B) = 25/129 P(A and B) = 50/129 Note : Accord...

Q: There are 2000 autos, 4000 taxis, and 6000 buses in a city. A person can choose any one of these to ...

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Q: Use the table to find the probabilities for a juice chosen from the shelf at random. P(less than 40...

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Q: Match the correct critical values for the t, and chi-square and tolerance interval factor v X3,025.7...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: Consider the following two-parameter normal family with PDF 1 f(x; μ, σ) - - o 0. Find the MLE for ...

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Q: A study is conducted involving 15 patients to investigate the relationship between their age and sys...

A: Given ,  patient  Age(x) BP(Y) 1 35 112 2 40 128 3 38 130 4 44 138 5 67 158 6 64 162 ...

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Q: In a normal distribution with a mean of 72 and a standard deviation of 12 what percentage of observa...

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Q: Two researchs adopted different sampling techniques while investistigating the same group of student...

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Q: Let X1, X2, ., Xn be a random sample from a distribution with mean u and variance o2. Consider the r...

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