Find the following probability for the standard normal distribution. (Round to the hundredths) P(Z < 0.5) 0.68 0.69 0.31

Q: Take home exercise 3. A psychologist administered a personality inventory test for…

A: The probability distribution for the random variable x is obtained below:The required formula for…

Q: In a Statistics class, the final exam scores were normally distributed with a mean of 63 and a…

A: Mean, μ = 63 and standard deviation,σ = 5

Q: need a normal probability graph n=10, p=0.5.

A: Ramdom variable x from binomial distribution with n=10 and probability p=0.5 To draw the graph by…

Q: Complete the table below and find the mean and variance of probability distribution: 1. P(X) X P(X)…

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Q: FIND THE VARIANCE The number of items sold per day at a retail store, with its corresponding…

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Q: for a binomial distribution, the mean is 4 and n=8. What is p for this distribution?

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Q: The probability distribution of a random variable x is given in the table. Find the mean and…

A: Mean is the average value of a given dataset. Standard Deviation is the amount of variation in a…

Q: If 15 P(5) = AP(1) in Poisson's distribution, what is the mean?

A: According to definition, the probability of x number of successes is given by the formula;…

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: In an certain species of newt, offspring are born either green or black. Suppose that 60% of these…

A: Given Information:Sample proportion() = 60% =0.6Sample size (n) = 185

Q: We want to estimate the mean of a population. A random sample of subjects is selected and the sample…

A: From the provided information, Standard error (SE) = 1.8

Q: The discrete random variable X is the number of students that show up for Professor Jones' office…

A: We have given that, X is a discrete random variable i.e. number of students.   The probability…

Q: What is the standard deviation of the following probability distribution? Round to tenths place.

A: Expectation: Second raw moment:

Q: Determine the mean of the probability distribution: 1 3 P(x) 0.48 |0.27 0.19 .06 Round your answer…

A: Given, Probability distribution is   Mean=?

Q: s two balls into four boxes such that each ball is equally likely to fall in any box. Let Y denote…

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Q: The following table represents the probability of the number of cars owned by a college student.…

A: Given probability distribution table is,xP(x)00.510.3320.1230.05We need to find the standard…

Q: The body temperatures of all mosquitoes in a county have a mean of 57∘F and a standard deviation of…

A:

Q: In A-1. The 8th hr. Probability was cut off. I would need that answer as well. In C. The mean and…

A: a-1. The probability distribution for the number of hours parked is, Hours Probability 1…

Q: B. Answer the following: Solve for the mean and variance of random variable. Let X be a random…

A: Given, X P(X=x) 0 1/4 1 2/5 2 1/8 3 9/40

Q: A dice is rolled three times a. Find the probability of getting exactly 2 fours  b. Find the mean,…

A: Let X be a random variable from Binomial distribution with parameter n and p. Mean = np  Variance=…

Q: The number of bacterial colonies on a petri dish can have an average of 2.5 per cm2 Define the…

A: Given: The number of bacterial colonies on a petri dish can have an average of 2.5 per cm.

Q: You want to find the probability of getting a z score less than or equal to 1.2. Which distribution…

A: The best distribution for calculating this probablity is "normal distribution". We need to look for…

Q: Calculate the mean and standard deviation for the discrete probability distribution shown here. 2 5…

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Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Given, Mean = μ = 250SD = σ = 44

Q: You have a uniform distribution whose lowest value is 7 and whose highest value is 15. Find the…

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Q: Find the variance of the probability distribution for the histogram shown.

A: Given a histogram, we need to find variance of X

Q: The probability of a given score range is 0.4821. The bottom of the score range is the average…

A: From the provided information, The probability of a given score range = 0.4821 The bottom z score is…

Q: Use your Ti-84 to find the mean and standard deviation of the discrete probability distribution…

A: We find the mean and standard deviation using the step by step procedure in Ti-84 calculator as…

Q: What is the probability distribution of the following data? Mean = 25.28571

A: It is given that: From the graph,  Player name Rankings (Wins) (f) Khabib Nurmag 29…