If a random variable X has the x² distribution with degree of freedom 13. Then P(4.107 < X < 9.299) = 0.34 0.24 0.45 0.19
Q: Consider a normally distribr deviation of 10. Find P(90<
A: mean =85 standard deviation =10 to find P(90<X<100)
Q: Assume the random variable x is normally distributed with mean u= 82 and standard deviation a =5.…
A: From the provided information, Mean (µ) = 82 Standard deviation (σ) = 5 X~N (82, 5)
Q: Let X represent a binomial random variable with n = 170 p = 0.21. Round your final answers to 4…
A: From the information, given thatLet X denotes the binomial random variable with the probability of…
Q: If X is a continuous random variable with mean μ and standard deviation σ, what is the probability…
A: Answer: Approximately 68% of the values of X are expected to lie between μ - σ and μ + σ. This is…
Q: A production line in a factory, assembles laptops. A random sample of assembly time of 49 laptops…
A: We have to find given probability.
Q: If Z denoted the standard normal random variable, then P(-.58<Z<.23)
A: Given that Z denoted the standard normal random variable, then
Q: A) y= Q25. The correlation coefficient (r) between X A)-0.8987 B) 0.8632 C) -0.9603 enswer: D)
A: We have given that, X :- 3, 4, 6, 8, 10 Y:- 8, 6, 7, 5, 3 Then, We will find the correlation…
Q: let X denote a random variable that has a Poisson distribution with mean y = 3 find p(x≥4/x≥2)
A:
Q: the random variable X takes integer values starting from 1and has a geometric distribution with mean…
A:
Q: Suppose that the number of Tornadoes that strikes a certain area of United States is a Possion…
A: Let X: Number of tornadoes that strikes a certain area of United states X is a Poisson random…
Q: An extreme Type Il random variable X has parameters u = 6.9 andk= 4.9. What is the probability that…
A: Given that a random variable X follows an extreme Type II distribution with parameters u=6.9 and…
Q: A random variable X is binomially distributed with mean 4 and standard deviation v2.4. Find the…
A:
Q: Assume that the random variable X is normally distributed, with mean u = 70 and standard deviation o…
A: The random variable X is normally distributed. The population mean is 70. The population standard…
Q: Suppose x is a normally distributed random variable with mean μ=88.09 and standard deviation…
A: Given that, mean μ=88.09 and standard deviation σ=21.31 P(x<55.65)=? P(x>138.14)=?…
Q: The random variable X has a binomial distribution with parameters n = 8 and p = 0.30. what is…
A: The formula for binomial distribution is, PX=x=nxpx1-pn-x
Q: Suppose that a random variable X has a hypergeometric distribution with parameters n = 36, N = 50,…
A:
Q: What is the probability that the resulting sum is between 51,700kWh and 51,800kWh?
A: Solution: Given: Y: daily electricity use values having unknown distribution with mean = μy = 430…
Q: Assume that the random variable X is normally distributed, with mean u = 52 and standard deviation 0…
A: The objective of this question is to find the probability that the random variable X, which is…
Q: Suppose X is a normally distributed random variable with a mean of 46 and a standard deviation of 5.…
A: Introduction:Suppose the normally distributed random variable, X, has mean, μ and standard…
Q: Assume the random variable x is normally distributed with mean=84 and standard deviation=4. Find the…
A: Given that, Mean = 84 Standard deviation = 4
Q: Assume that the random variable X is normally distributed with mean = 55.4 and standard deviation =…
A: It is given that the mean 55.4, the standard deviation is 9.2 and the sample size is 64.
Q: Determine the standard normal random variable (z) for P(X > 80) Suppose X be a normally distributed…
A: Solution-: Given: μ=65,σ=13 We want to find the standard normal random variable (z) for P(X > 80)…
Q: Pacc Yao is a regular at a certain fast-food restaurant. Suppose the time X between the moment Pacc…
A:
Q: Let X be a random variable representing the weight of a randomly selected bag of apples from a…
A: Given that. X~N( μ , ?) μ=14 , ?=2 Z-score =( x - μ )/?
Q: Suppose the random variable X foliows a normal distribution with mean 80 and variance 100. Then the…
A:
Q: ssume that the random variable X is normally distributed, with mean r=60 and standard deviation…
A: The z-score corresponding to x =80 will be:
Q: Consider a normally distributed random variable X with a mean u = 30 and a standard deviation ? = 2.…
A: GivenMean(μ)=30standard deviation(σ)=2
Q: suppose a random variable X follows a binomial distribution with parameters n=70 and p=0.60.use the…
A: Given The data is as follows: X~Bn=70, p=0.60
Q: A random variable X is normally distributed with a mean of ( 34 ) and a standard deviation of ( 6 )…
A: Solution: From the given information, X follows normal distribution with mean µ=34 and a standard…
Q: The normal random variable X has mean 4 and variance 1.22. Find the probability hat: * * X < 2.5 X…
A: Given that. X~N( μ , ?) μ=4 , ?=1.22 Z-score =( x - μ )/?
Q: wwww.www e parameters belonging to the distribution are the triangle with i = (12,17,18) and ô %3D…
A: The probability that 13 < x < 16.5 is equal to the blue area under the curve.
Q: Assume that the sample is a random sample from a distribution that is reasonably normally…
A: We have given n = 20 Degree of freedom (df) = n - 1 = 20 - 1 = 19 t = -0.68
Q: Assume the random variable x is normally distributed with mean u = 88 and standard deviation o = 4.…
A: Given X ~ N(μ=88,σ2=16)σ=4
Q: If XX represents a random variable coming from a normal distribution with mean 5 and if…
A: given data normal distribution μ = 5 P(x>6.7) = 0.28 P(5<x<6.7) = ?
Q: A) 0.3846 B) 0.3223 *Consider the following table, and answer the following Two questions Q24. Find…
A:
Q: random variable X is normal with mean 2 and standard deviation 2, then what is P(x2 - 4x < 1). 3
A:
Q: identify the resulting distribution and obtain first four moments of the resulting distribution.
A:
Q: The random variable X is described by using the gamma distribution with expectation 10 and standard…
A: The provided information is as follows:The is a random variable and has Gamma distribution.The…
Q: The joint distribution of the pair of random variables as given in the following table: 0 0.2 Y 1…
A: The joint probability mass function of X and Y is given as:X-1001000.20.10Y10.10.2020.10.10.2
Q: Assume the random variable x is normally distributed with mean u= 86 and standard deviation o = 4.…
A: According to the provided information, mean = 86 standard deviation = 4
Q: Let x be a random variable that represents the commute time of teachers in a large rural area. If x…
A: The given mean is 64 and standard deviation is 12.2.
Step by step
Solved in 2 steps
- Assume that the random variable X is normally distributed with mean = 186.8 and standard deviation = 32. Let n = 50. Find P(195< < 200).If the standard deviation of a Poission random variable X is 2, then find the probability that X is strictly positive.The time required to roast a duck may be taken to have a normal distribution with a mean of 45 minutes and standard deviation 12 minutes. The time required to roast a chicken may be taken to have an independent normal distribution with mean 30 minutes and standard deviation 8 minutes. Assume that the oven can only roast one poultry at one time. 0.338 One duck is chosen at random. Find the probability that at least 50 minutes will be required to roast it. (ii) Three randomly chosen ducks are roasted successively in random order. Find the probability that each of them requires more than 45 minutes to roast. 0.15
- If X is a normal random variable with mean μ = 3 and standard deviation σ = a. P(X > 11) b. P(2-3|X > -5) 4, findSuppose a random variable x is best described by a uniform probability distribution with range 0 to 5. Find the value of a that makes the following probability statements true.Suppose that the random variable X is the number of successes in a Bernoulli process of 12 trials with probability of success 0.36. Choose one from the following which is closest to the correct answer. 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.
- If XX represents a random variable coming from a normal distribution and P(X<10.2)=0.22P(X<10.2)=0.22, then P(X>10.2)=0.78P(X>10.2)=0.78. true or falseIf continuous random variable normally distributed with mu = 256.43 and J = 27.11 , what is P(225.75 <= x <= 300.35) ?Assume that the random variable X is normally distributed with mean = 1000 and standard deviation = 188. Let n = 18. Find P( < 947.4).
- Suppose the random variable X follows a binomial distribution with n = 0.50. Using the normal approximation, what is the value for P(X > 38)? 100 and p =Use Hypothesis Testing for variance.Suppose x has a distribution with mean 22 and standard deviation 16. If a random sample of size n=36 is drawn find p(22<×<24)