Suppose that X is a binomial random variable with n=100 and p=0.4. Find the probability P(x is less than or equal to 80)based on the corresponding binomial distribution. * Your answer This is a required question Find the probability P(x is less than or equal to 80)based on the approximate normal distribution. * Your answer This is a required question Is the normal approximation reasonable? * Yes No

Q: 9. Let p(x) = ()*, ,X = 1,2,3,..., zero elsewhere, is the PMF of the discrete random variable X.…

A: We have given that

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Solution-: Let, X= The readings at freezing on a bundle of thermometers  Given: μ=00C,σ=10C ∴X→…

Q: O of OABS The mean percent of childhood asthma prevalence in 43 cities is 2.38%. A random sample of…

A:

Q: Given a continuous random variable X, X-N(2, 2) means that X follows a normal distribution with a…

A: GivenA continuos random variable X,X~N(2,2)

Q: Help!

A: Measures of position:The most common measures of position are percentiles, quartiles and standard…

Q: O Y = "the time it takes to finish this exam" OX= "the exact number of inches it rained last summer"…

A: Topic:- algebra

Q: Suppose a random variable has a binomial distribution with n = 10 and p = 0.1 a﷒ Find the expected…

A: Thank you for posting the question. As your question has more than 3 parts, as per the policy, we…

Q: ind the probability distribution function of the number T show in it. B/X is a random variable H 70…

A: Given that.   X~N( μ=70 , ?^2 =36)   μ=70     , ?=6   Z-score =( x - μ )/?

Q: L0.025 Lo.025) 2. P(-to.1 < T < to.025) 3. P(-2.365 <T < 2.365) and df=9.

A:

Q: The temperature in degrees Celsius at a certain location is nornally distributed with a mean of 68…

A:

Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…

A: It is given that sample mean is 55.8 and the standard deviation is 7.9.

Q: Suppose that the random variable has the binomial distribution, X - B(100, 0.2) , and is the…

A: Here it is given that X~Bin(100,0.2) where n=100 and p=0.2.

Q: Assume the random variable x is normally distributed with mean u = 83 and standard deviation a =5.…

A:

Q: Select all that apply. We show that our sample statistics have (at minimum) a somewhat normal…

A: If sample size is large then distribution is approximately normal.

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: Solution

Q: The mean height of an adult giraffe is 18 feet. Suppose that the distribution is normally…

A: The curve of the normal distribution is bell shaped and symmetric about the mean of the…

Q: P(67<x<80) = to four decimal places as need

A:

Q: t z be a standard normal random variable with mean ? = 0 and standard deviation ? = 1. Use Table 3…

A: Given that  Z standard normal random variable with Mean (μ) = 0 Standard deviation (σ) = 1   We know…

Q: a) Find the approximate probability P(X > 1.1) b) What is the approximate probability that X₁ + X₂ +…

A: Given that,Sample size Let  be the sample mean.

Q: Suppose the number of rides that a visitor enjoys at Disney World during a day is a random variable…

A: Formulae :  Mean :  μ = ∑xp(x) Standard deviation :  σ = ∑(x-μ)2P(x)

Q: Assume the sample is a random sample from a distribution that is reasonably normally distributed and…

A: given data approximately normal distributionn = 115% in each tail.

Q: If a random variable X has the x² distribution with degree of freedom 13. Then P(4.107 < X < 9.299)…

A: Given : df = 13

Q: Q2/ Let x has mean 8. Find the probability that x is greater than 20. exponential distri bution with…

A: Let X be a continuous random variable is said to follow Exponential distribution and the probability…

Q: Please solve the attached question

A: The problem is about a random variable X which follows a continuous uniform distribution. The…

Q: For a certain river, suppose the drought length Y is the number of consecutive time intervals in…

A: The pmf of geometric distribution is: p(y)=(1-p)yp       , y=0, 1, 2,......

Q: Assume the random variable x is normally distributed with mean p= 83 and standard deviation o = 5.…

A:

Q: Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A:

Q: The probability distribution shown below describes a population of measurements X       |      0…

A: Given:

Q: Le Y is a random variable that follows a binomial distribution with parameters n, pas X~ Binom(n,…

A:

Q: Let X and Y be independent random variables identically distributed as Exponential(2). a. Find the…

A: a. To find the distribution of X - Y, we need to determine its probability density function (PDF) or…

Q: For the binomial distribution with the given values for n and p, state whether or not it is suitable…

A: Yes: Normal approximation is suitable.

Q: Suppose IQ scores are approximately normally distributed with mean mu = 100 and standard deviation a…

A: Given,

Q: If the mgf of a random variable x is M(t) = (4/9 + 5e' /9)7 , then x has a binomial distribution…

A: We have given that  Moment genrating function mgf.M(t) X~binomial ( n , p ) Given binomial mgf.

Q: Help Sav A random variable is binomially distributed with n= 16 and T= 40. The expected value and…

A: Let the random variable X follows binomial distribution  That is, The options (1), (2) and (4) are…

Q: Assume a normal distribution tus u 80 and o 10. What is the probability of randomly selecting a…

A: X follows a Normal distribution with mean = 80 and S.D = 10 Then z=(x-mean)/SD = (x-80)/10…