How do you do a binomial distribution?

Q: The mean and variance of a binomial distribution are 6 and 3 respectively. Find the mode of the…

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Q: For any distribution what is the score that separates the highest 10% from the rest called?

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Q: What is the shape of a x ^ 2 distribution?

A: If Xi’s follows standard normal distribution for all i = 1, 2, .., n, then ΣXi2 follows chi square…

Q: procedure can be treated as a binomial distribution. O true O false

A: Given 200 randomly selected Americans are asked if they smoke cigarettes.

Q: Americans drank an average of 34 gallons of bottled water per capita in 2014. If the standard…

A: Let the random variable X denote the American drank gallons of bottled water. Given that average…

Q: What is the condition on the probability of success p that will guarantee the histogram of a…

A: The binomial distribution has p - probability of success and n- number of trails. The binomial…

Q: What do you mean by Multivariate Distributions?

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Q: Find the mean and variance of S2(attached)

A: Expectation of S2:The expectation of S2 is obtained as follows:

Q: How do you illustrate a normal random variable?

A: How do you illustrate a normal random variable?

Q: What is the distribution of x=21

A: We know that , A discrete distribution is a statistical distribution that shows the probabilities of…

Q: What is the probability of a sample mean being between z-values of -1.58 and 0.79?

A: We have to find  the probability of a sample mean being between z-values of -1.58 and 0.79?

Q: The mean and variance of a binomial distribution are 9 and 6 respectively. Find the value of n.…

A: Note: Please repost 2nd question as i can answer only 1 question as per my policy.   1) Given data,…

Q: It has been a bad day for the stock market with 60% of securities losing value. You are evaluating a…

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Q: An oil company conducts a geological study that indicates that an exploratory oil well should have a…

A: Geometric distribution: The probability mass function of Geometric distribution is P(n) = p(1 - p)n…

Q: binomial distribution with p = .37 and n = 100, what is the mean (μ)?

A: It is given that n=100 and p=0.37.

Q: deviation is 7.25 and it is normally distributed. What is the probability that a group of randomly…

A: here given , Supposed that the mean age of the employees of warrior's corporation is 45.5 years and…

Q: A Senior High School teacher conducted an examination before and after he discussed the topic…

A: Let μd and σd denote respectively the population mean and standard deviation of differences between…

Q: When we standardize using​ Z-scores, the shape of the distribution changes.   True…

A: Changing the values in z-scores does not change the shape of distribution. Clearly if values are…

Q: What are the properties of F distribution?

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Q: Explain one actual application of a discrete probability distribution or a poisson distribution in…

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Q: a) Clothes manufacturing machine, the probability of appearing damaged products is 0.02. At the…

A: Provided information is, For cloths manufacturing machine, the probability of appearing damaged…

Q: How to find the mean of the random variable x

A: The mean of the random variable x will depend on the distribution of x. Every distribution has its…

Q: A die is tossed twice. Getting a number greater than 4' is considered a success. Find the mean and…

A: Given that  A dice tossed twice  n=2 Sample space=S={1,2,3,4,5,6} Required outcomes=(5,6) p=2/6=1/3…

Q: True or false: As the degrees of freedom decrease, the Student's tdistribution becomes more like the…

A: As the degrees of freedom decrease, the student's t-distribution becomes more like tends to the…

Q: The normal PROBABILITY plot is supposed to show a straight line if your data have a normal…

A: Normal probability plot: It can be used to determine the small sets of data come from a normal…

Q: The mean and variance of a binomial distribution are 8 and 4 respectively. Find the value of n.…

A: Binomial distribution allows us to compute the probability of observing a specified number of events…

Q: A binomial probability distribution has p = .20 and n = 100.a. what are the mean and standard…

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Q: z-score that is greater

A: we can assume it to be standard normal distribution with mean = 0 standard deviation = 1

Q: Explain poisson distribution with Examples?

A: The Poisson distribution is a type of discrete probability distribution which is defined over number…

Q: Explain how you would determine the probability of belonging to the top 5% of a  class. Illustrate…

A: Normal distribution: A continuous random variable X is said to follow normal distribution if the…

Q: The mean and variance of a binomial distribution are 6 and 3 respectively. Find the value of n

A: The mean of the distribution (μx) is equal to n * P  and The variance (σ2x) is n * P * ( 1 - P ).

Q: Why is it that the normal distribution is the most useful probability distribution?

A: Solution-: We want to get the reason why is it that the normal distribution is the most useful…

Q: What is the / Find the 99th percentile of the t-distribution with 18 degrees of freedom.

A: Here Given df =18

Q: Is this a binomial distribution? Explain.

A: Here use basic rule of binomial

Q: What is the expected value of the binomial distribution where n = 16 and p = 0.85? Express your…

A: Let X be the random variable from binomial distribution with probability (p) = 0.85 and sample size…

Q: The mean and variance of a binomial distribution are 9 and 6 respectively. Find the value of n.

A: Solution-: Given: The mean and variance of binomial distribution are 9 and 6 respectively. i.e. We…

Q: find the variance of the binomial distribution for which n = 800 and p = 0.88

A: The variance of the binomial distribution is defined as: Var(X)=np(1-p)

Q: When marketing a new product, a company conducts a taste survey. A recent survey of 399 respondents…

A: Binomial Distribution: Let X be a discrete random variable of marketing a new product is said to…

Q: How would you use the normal distribution to find approximately the frequency of exactly 5 successes…

A: Given  n=100 , p=0.1

Q: What is the distribution of X? What is P[X = 2]?

A: The moment generating function is defined as MX(t) = E(etx) = Σetx.P(X = x)

Q: What is the shape of a χ2χ2-distribution?

A: The Chi-Square  distribution curve is skewed to the right and its shape depend on the degree of…

Q: What is the mean and variance of a variable that follows the binomial distribution?

A: Let X be the random variable follows binomial distribution.  X ~ Binomial (n, p)

Q: For binomial distribution, the mean is 4 and n = 8. what is π for this distribution?

A: Given Information: Mean of Binomial distribution is 4 and n = 8. Mean of Binomial distribution is…

Q: What is difference between probability function and distribution function?explain with examples for…

A: Probability function : It is the function which is used to describe the probability distribution of…

Q: he variance of a binomial variable's distribution equals 100, for giver True O False

A: Let a random experiment be performed repeatedly, each repetition is called a trial. let the…

Q: .The mean and variance of a binomial distribution are 8 and 4 respectively. Find the value of n

A: The probability of success or failure of an event which occur n times is calculated using the…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.