Suppose that the random variable X is the number of successes in a Bernoulli process of 12 trialswith probability of success 0.36. Choose one from the following which is closest to the correctanswer.O c. P(X ≥ 9) = 0.0011.O b. P(X> 9) = 0.0011.O d. P(X> 9) = 0.001.O e. P(X ≤ 9) = 0.993.O a. P(X < 9) = 0.9989.

Answered: Image /qna-images/answer/de5cef18-5ea6-4759-be17-565f223935bb.jpg

Answered: Suppose that the random variable X is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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where appropriate. 1. Experience has shown that the seeds from a certain variety of orchid have a 75% chance of germinating when planted under normal conditions. Suppose n seeds are planted, and let X be the random variable that counts the number of seeds that germinate. (a) What type of random variable is X? Indicate both the type and the appropriate parameters using the "~" notation. Write down the pmf of X, and do not forget to indicate the range of values that x can take on. X ~ px (x) = = (b) What is the minimum value of n so that the probability of at least five of the seeds germinating is at least 90%?
Assume that random guesses are made for eigth multiple choice questions on an SAT test, so that there are n=8 trials, each with probability of success (correct) given by p=0.6. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4. P(X < 4) = Round to four decimal places
May I just ask for clarification, should it be x<=3; since beta = 5 is the mean time of failure and what the question is asking is the probability that at least 2 still functions after 8 yrs?. Thank you
1. If μx = 30 and σx = 4, Determine P(X<31) for n = 4. a) What is the mean,μx, of the random variable? b) What is the standard deviation,σx, of the random variable? **I am mainly confused whether the S.D. for part (b) would be the value that is given (σx = 4) or if it is "σ/√n" (which would be 4/√4 = 2).
Suppose X is a random variable of uniform distribution between 1 and 7. Find E(X)
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Assume that the random variable X is normally distributed with mean = 1000 and standard deviation = 188. Let n = 18. Find P( < 947.4).
The factory produces a certain type of sunblock. each barrel with the sunblock has some impurities in it. let the random variable X be the amount in grams of impurities in a given barrel. the mean of X is 6.50 grams with standard deviation 1.50g. a random sample of 50 barrels is collected and the average amount impurities per barrel is measured what is the approximate probability that this sample mean is less than 7.00g? use the z- table Round the answer to the nearest hundredth.
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Let x be a random variable that represents red blood cell count (RBC) in millions of cells per cubic millimeter of whole blood. Then x has a distribution that is approximately normal, For the population of healthy female adults, suppose the mean of the x distribution is about 4.64, Suppose that a female patient has taken six laboratory blod tests over the past several months and that the RBC count data sent to the patient's doctor are as follows. 4.9 4.2 4.5 4.1 4.4 4.3 () Use a calculator with sample mean and standard deviation keys to find x and s. (Round your answers to two decimal places.) C) Do the given data indicate that the pooulation mean RBC count for this patient is lower than 4.647 Use a- 0.05. (a) What is the level of significance? State the nul and alternate hypotheses. O Hn: 4- 4.64; H: 4.64 O Ho: H> 4.64; H:u- 4.64 O Hn: H- 4.64; H: H 4.64 (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. O The standard normal,…
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