If n = 20 and p = 0.90, then the standard deviation of the binomial distribution is

Q: The distribution of scores for the final exam in MATH 2406 last year had a Normal distribution with…

A:

Q: a normal distribution has a mean of 60 with a standard deviation of 8. for this population, which is…

A: Solution

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A:

Q: The owner of a shop knows the number of customers coming to his shop in a day is a random variable…

A: mean = 23.7 sigma = 4.2 Let X represent the nu,ber of people coming to shop in a day

Q: The random variable X has a uniform distribution with values between 11 and 21. What is the mean…

A:

Q: e standard deviation is larger than 110% of the population standard deviation. Correct your answer

A: A random sample is given as, n=22. The mean is , μ=300. The variance is, σ2=255. The probability…

Q: The distribution of scores for the final exam in MATH 2406 last year had a Normal distribution with…

A:

Q: Find mean and standard deviation for the binomial distribution, P=0.35 and n =23

A: Given thatp = 0.35n = 23X ~Binomial(n, p) X ~ Binomial (23, 0.35)

Q: Suppose one value is selected from a uniform distribution with a = 0 and b = 11. What is the…

A: Given: X~U(0,11) a=0 b=11

Q: ume that the random variable X is normally distributed with mean u=70 and standard deviation 9. Find…

A: Given data,Mean μ=70sd    σ=9Find the 40th percentile for X

Q: A binomial distribution involves 60 trials with a probability of failure of 26. Find the standard…

A: It is given that n=60 and the probability of failure q is 0.26.

Q: Show that the standard deviation of z-scores equals 1

A: z score is given by, z score = x-μσ Where, x: Raw score μ: Population mean. σ: Population standard…

Q: If babies have birth weights that are approximately normally distributed with mean 3.3kg and a…

A: Given :  μ=3.3 kgσ=0.55 kgX~N(μ=3.3,σ2=(0.55)2)  We want to find, P(X > 5) = ?

Q: For a binomial distribution, the mean = 5 and standard deviation=2. Obtain the p.m.f. of the…

A: Step : 1 Given that : Mean = 5 Standard deviation = 2 X follow binomial distribution.  By using…

Q: The probability that a marriage will end in divorce within 10 years is 0.25. What are the mean and…

A: Solution :  Given that  The probability that a marriage will end in divorce within 10 years is 0.25.…

Q: The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the…

A:

Q: A random variable X follows a normal distribution with mean μ = 100 and standard deviation σ = 20.…

A:

Q: The time it takes a runner of a marathon in a certain city to fifinish the race (fifinish time) has…

A: Given Data Population Mean,μ = 195.0 Population Standard Deviation,σ = 25.0

Q: Calculate the mean and standard deviation for the binomial distribution P=0.67,n=8

A: Answer: From the given data, p = 0.67 and q = 1 - p = 1 - 0.67 = 0.33 Sample size(n) = 8

Q: Suppose that the random variable X  has a normal distribution with mean 0 and variance 800.  What is…

A: given the random variable X follows normal distribution mean(μ) =0variance =800we know the formula…

Q: Suppose Y is a random variable with a normal distribution and mean (μ) equal to 100, and standard…

A: GivenA random variable Y ~Normal(100,15)Mean(μ)=100standard deviation(σ)=15

Q: An unknown distribution has a mean of 40 and a standard deviation of 8. A sample size of 50 is drawn…

A: Given Information is -Sample size, .Mean, .Standard deviation, .

Q: The expected value of a random variable X is 140 and the standard deviation is 14. The standard…

A: From the provided information, Expected value of a random variable X is 140 and standard deviation…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A:

Q: A population is normally distributed with a mean of 25 and a standard deviation of 3. What is the z…

A: GIVEN DATA,μ=25σ=3X=18z=?

Q: Find the mean and standard deviation for the binomial distribution when p = 3/8 and n= 235.

A: Given p=3/8, n=235

Q: A normal distribution has a mean 80 and standard deviation is 10. What is the probability of…

A: Given:    µ = 80     σ = 10

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

A:

Q: A normal distribution has a mean of 20 and a standard deviation of 2. What is the z value of 17.5?

A:

Q: normal distribution has a mean of u = 58 and a standard deviation of o = 12.

A: Given that  Normal distribution with Mean (μ) = 58 standard deviation (σ) = 12 We know that…

Q: A normal distribution has a mean of 54, and a sttandard deviation of 6. What is the probability of…

A:

Q: A random variable X is normally distributed with mean = 80 and standard deviation = 4.5. What is the…

A: The random variable X follows normal distribution. The population mean is 80. The population…

Q: According to a poll, individuals keep their mobile phones for an average of 1.4 years before…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: the annual precipitation has normal distribution with a mean of 109 and standard deviation of 10.…

A:

Q: If X is a normally distributed random variable with a mean of 235 Find the standard deviation given…

A: