The length of time that a student takes to complete her homework is uniformly distributed between 3 and 5 hours. Find the probability that she completes her homework in less than 205 minutes. Answer as a fraction.

Q: One of the tallest living men has a height of 250 cm. One of the tallest living women is 232 cm tall...

A: Given that, Xmen=250 cm     μ=176 cm     σ=7 cm The z-score for men is,

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Q: A bag has 2 baseballs (B), 5 tennis balls (T), and 3 whiffle balls (W) What is the probability of pu...

A: Probability of pulling out a tennis ball is 510 and the reduced fraction is 0.5 and 50%

Q: 49. It is estimated that 63% of Americans will watch the Masters golf tournament and only 48% will w...

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Q: What is the mean for a normally-distributed binomial distribution with q = 0.4 and 100 trials.

A: Ans#- What is the mean for a normally-distributed binomial distribution with q = 0.4 and 100 trials ...

Q: A student takes a 20-point quiz each week in statistics class. If the student quiz scores for the fi...

A: It is given that students quiz score for the first 3 weeks are 5,9 and 10 We need to find the mean s...

Q: Payoff of three Acts A, B, C and D and the states of nature P, Q, R are States of nature Payoffs Act...

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Q: You work for a soft-drink company in the quality control division.  You are interested in the standa...

A: Given data is 11.83,11.98,11.87,11.81,12.09,11.88,12,11.95,12.11,12.21,12.16,12.01,11.98,11.81,11.95...

Q: Example 17-47. Show that the largest observations L of a sample of n observations fro a rectangular ...

A:

Q: Confidence level Critical value 0.90 z = 1.645 0.95 1.960 %3D 0.99 z* = 2.576 %3D 377308.2364912.gx3...

A: Given data    confidence level         critical value        0.90                            z*=1.64...

Q: Consider the data. 3 12 6 20 14 55 35 60 10 25 The estimated regression equation for these data is ŷ...

A: Given Xi 3 12 6 20 14 Yi 55 35 60 10 25

Q: Suppose a math class contains 37 students. There are 16 females (six of whom speak Spanish) and 21 m...

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Q: Calculate mean deviation from (i) mean and (ii) Median for the following data. Also calculate co-eff...

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Q: In the distribution with u = 35 and o = 6, a score of X = 50 correspond to z =

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Q: 5. Economic growth Entrepreneurship employment No. of women entrepreneurs per 100 women 500 45 49 32...

A: "Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts f...

Q: Hay Fever Relief Data: A research laboratory was developing a new compound for the relief of severe ...

A: GivenThe estimated treatment means plot as shown below With respect to the treatment means plot it i...

Q: Economics: 66 90 89 55 58 44 42 History: 58 76 65 58 53 49 56

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Q: PC World provided ratings for the top five small-office laser printers and five-corporate laser prin...

A: Given the data that, the speed for plain test printing in pages per minute (ppm)  and the price of e...

Q: 11 387 12 645 14528 20 122 22 122 28 166 29861 54304 44 189 42 651 46678 50 169 7904 10 326 7616 2.9...

A:   Scatterplot

Q: Listed below are the durations (in hours) of a simple random sample of all flights of a space shuttl...

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Q: A vertical line drawn through a normal distribution at z = 0.50 will separate the distribution into ...

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Q: Understanding student demographics is important for a college in deciding what programs will most be...

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Q: Interpret the regression coefficient of X3 in relation to the Y ( X3 unit is mile)  Y =  58.286 + 1...

A: The regression coefficient of X3 is given by 13.7604

Q: The total costs for a company are given by C(x) = 5400 + 20x + x2 and the total revenues are given ...

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Q: >14. Eliquis The drug Eliquis (apixaban) is used to help prevent blood clots in certain patients. In...

A: Given: Number of patients, n=5924 Number of patients develop the adverse reaction, x=153  

Q: 47. Suppose A and B are two events with P(A) = 0.36, P(B) = 0.48, and the P(A or B) = 0.60. (a) Find...

A:

Q: What is the standard deviation for a binomial distribution with p = 0.4 and n = 77?  Report your ans...

A: Given,p=0.4n=77A random variable X~Binomial(n=77 , p=0.4)P(X=x)=77x0.4x1-0.477-x  ;   x=0,1,2,...77

Q: Let U= {1,2,3,4,5,6,7,8,9,10} be the universal set A={1,2,3,4,5,6}, and B={5,6,7,8}. Which of the fo...

A: Given that  U is a universal set { 1,2,3,4,5,6,7,8,9,10} A= { 1,2,3,4,5,6} and  B = {5, 6,7,8} By us...

Q: Given the stem-and-leaf diagram. Answer the following questions: • The total frequency • Observation...

A: Stem and leaf plot is the device for presenting quantitative data in a graphical format. 

Q: Use spearmans rank correlation coefficient Rankings of 10 trainees at the beginning (x) and at the e...

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Q: Let X be a continuous random variable with a pdf f(x). Suppose f(x) > 0 when x ≥ 0 and f(x) = 0 when...

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Q: JExample 15-44. For the double Poisson distribution : p(x) = P(X = x) =! "1.m,* 1 e™2.m, x ! %3D x!;...

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Q: A sample of 503 school teachers, who are married, showed that 210 of them hold a second job to suppl...

A: Given Data n1 = 503 x1 = 210 n2 = 383 x2 = 141

Q: Critical Thinking. In Exercises 17–28, use the data and confidence level to construct a confidence i...

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Q: What are the similarities ofthe birthday paradox and soliloquy

A: Birthday paradox is a paradox that the probability that n randomly chosen people have the same birth...

Q: A machine puts out 16 imperfect articles in a sample of 500. After the machine is overhauled, it put...

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Q: A random sample of 16 pharmacy customers showed the walting times below (In minutes). 16 21 20 24 17...

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Q: Question 8 The joint probability density of X and Y is f(x, y). Find the marginal density of X at 0....

A: Given: joint pdf of random variable x and y is f(x,y)=2xy  :0<x<1, 0<y<2 , y<2x  then...

Q: Calculate a 95% confidence interval (show your work) for the population mean of total cholesterol le...

A: It is given that Sample size n = 30 Sample mean M = 5.20 Sample SD s = 1.3 The critical value of t a...

Q: Consider the following probability density function f(x): f (x) 1 1 e* for 0 1).

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Q: A car hire firm has two cars, which it hires out day by day. The number of demands for a car on each...

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Q: Q. 1. Calculate median from the following items : 5, 7,9, 11, 13, 15, 17, 19, 21

A: Given The data is as follows: 5,7,9,11,13,15,17,19,21

Q: Refer to Table 1. Let F denote the event that the student intends to attend classes full-time in pur...

A: It is given that F denotes the event that the student intends to attend classes full-time in pursuit...

Q: Waiting times (in minutes) of customers at a bank where all customers enter a single waiting line an...

A: The coefficient of variation for the waiting times at bank A is,

Q: When rs = 0.3 and x = 10. It was later discovered that the difference in ranks in two subjects by on...

A:

Q: you see a question that has the following format, how will you fill in the blank? 95% of the regres...

A: Given: Confidence level = 95%

Q: A sample of n = 100 scores is selected from a population with u = 100 with o = 30. On average, how m...

A: The formula of the standard error of the mean is,

Q: If you randomly select a card from a well-shuffled standard deck of 52 cards, determine the probabil...

A:

Q: The joint probability density function for X and Y is f(x, y). Find P(X < 0.4| Y = 0.9). Remember, y...

A: f(x,y)=1/4(2X+y) 0&lt;x&lt;1, 0&lt;y&lt;2              0                 O/w     

Q: 51. The Pew Research Center finds that the demographic make-up of political parties is changing dras...

A: Formula : For independent event,  P(A|B) = P(A)