A binomial probability distribution has p = .20 and n = 100.a. what are the mean and standard deviation?b. Is this situation one in which binomial probabilities can be approximated by the normal probability distribution? Explain.c. what is the probability of exactly 24 successes?d. what is the probability of 18 to 22 successes?e. what is the probability of 15 or fewer successes?

Q: 16. The reported cancer rates for men ages 65 and older is 23%. Assume this estimate is the true…

A: Given : p = 0.23 n = 25

Q: The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation…

A: (a)   Obtain the probability that pregnancy will last 307 days or longer. The probability that…

Q: 55% of college graduates know the name of the Secretary of State for the U.S. You randomly select 5…

A: (a) Obtain the mean of the binomial distribution. The value of the mean is obtained below: Let X…

Q: a. What is the distribution of X? X ~ N(18, 1) b. What is the median giraffe height?___________…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: The mean height of women in a country​ (ages 20-29) is 63.9 inches. A randon sample of 70 women in…

A: Given μ= 63.9 Sample size=n=70 σ=2.87

Q: 3. Compare the three boxplots below. 25+ 20 15- A B 10 5 +

A:

Q: 3. A surgical technique is performed on ten patients. You are told there is an 83% chance of…

A: Givenn=10p=0.83

Q: The p-value… is used to determine the Margin Of Error measures the number of standard deviations…

A: p value is a probabilty  which indicates the decision about null hypothesis assuming true  so that…

Q: In the following probability distribution, the random variable x represents the number of activities…

A:

Q: According to National Testing data, college math class testing times are Normally distributed with a…

A: Given information Mean µ = 56 Standard deviation σ = 4

Q: K The lengths of pregnancies are normally distributed with a mean of 266 days and a standard…

A: We have given that Mean(µ) = 266Standard deviations (σ) = 15X ~ N (µ, σ )= N(266,15)

Q: Assume that the heights of women are normaly distributed with a mean of 63.6 inches and a standard…

A: Given,   Mean = 63.6 Standard deviation = 2.5 Sample size = 100   The objective is to find the…

Q: Ahmed receives a weekly salary of $250, plus an additional $300 for each car sold. Find the mean and…

A: Salary=250 and 300 additional for each car sold. Salary = 250 + x*300  x = number of car sold

Q: The following table represents the number of free throws a typical NBA player makes in three…

A: Solution

Q: For a binomial distribution, the mean is 7.2 and n = 8. What is π for this distribution?…

A: Given mean=7.2 n=8

Q: Empirical probabilities are deeply rooted in probability. essentially percentages based on a large…

A: Empirical probability or experimental probability is determined how often an event has been observed…

Q: Private nonprofit four-year colleges charge, on average, $26,599 per year in tuition and fees. The…

A: It is given that the random variable X is a randomly selected college. The random variable X follows…

Q: The owner of a computer repair shop has determined that their daily revenue has mean $7200 and…

A: We have given that  Mean(µ) = 7200Standard deviations (σ) = 1200 Number of days (n) = 30

Q: Find the probability that a sample of 18 has a sample mean below 32. The population mean is 24 and…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: %78 of U.S. adults think that political correctness is a problem in America today. You randomly…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A:

Q: How do I get the probability with x bar?

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: B. Standard Deviation = 2.8532 The cost of parking is 3.25 dollars per hour. Calculate the mean and…

A: It is given that the probability distribution in tabulated form.

Q: thank u

A:

Q: A fair coin is flipped 4 times.  The probability for the number of heads (x) is given in the table…

A: List of formulae :  Mean :  μ= ∑xP(x) Standard deviation :  σ = ∑(x-μ)2P(x)

Q: Michelle, a telemarketer makes six phone calls per hour and is able to make a sale on 30% of these…

A: The question is about discrete probability distribution Given : No. phone call telemarketers makes…

Q: Private nonprofit four-year colleges charge, on avwrage, $26,093 per year in tuition and fees. The…

A: GivenMean(μ)=26093standard deviation(σ)=6846

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.