What is the standard deviation of the discrete probability distribution of the extra damage points?

Q: Explain Student t distribution & F distribution?

A: Student t distribution: Shape of a student’s t distribution is bell shaped curve with mean zero and…

Q: The time spent waiting in the line is approximately normally distributed. The mean waiting time is 6…

A: Solution

Q: A professor of statistics noticed that the marks in his course are normally distributed. He has also…

A: μ1=0.78, σ1=0.15μ2=0.74, σ2=0.13

Q: The processing time for the robogate has a normal distribution with mean 23 sec and standard…

A: Given: The mean of the processing time μ=23 sec The standard deviation σ=2 sec.

Q: if X is normally distributed withe mean 10 and standard deviation 2, what is the probability that X…

A: Given, Px,5=PX-μσ<5-102=Pz<-2.5=0.00621 Using Excel SyntaxNORM.S.DIST-2.5,TRUE X is normally…

Q: Suppose that a pdf for a continuous random variable Y takes the form ayya-1 y > 0 f(V) = (1+ yª)r+1…

A:

Q: What are the conditions for using a normal distribution to approximate a binomial distribution?

A: In probability distribution, the binomial distribution is a discrete probability distribution with…

Q: The distribution of raw scores on a chemistry final is approximately normal with a mean of about 50…

A: The random variable X is defined as the student will have a raw score which follows normal…

Q: How can we calculate the probability-weighted average of the squared deviations?

A:

Q: Your company's monthly income average is 25000 $ with a standard deviation of 2000 $, while average…

A: Given: Let monthly income be X X ~ N(25000, 20002) Let monthly cost be Y Y ~ N(20000, 15002) Let P…

Q: What is the median of a continuous random variable? What is the median of an exponential…

A:

Q: Tom works for a fruit company and found that the weights of pineapples are normally distributed with…

A:

Q: What is the probabilities associated with the normal distribution of a P(z >= .23) =

A: Z score is given z = 0.23  Using Excel formula =NOMSDIST(0.23) or Z table we find the probabilities…

Q: For a normal distribution of negative Z score means tha

A: Z-score value is negative.

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: A recording firm wants the distribution of lengths of cuts on its playlists to have an average of…

A: Let X be the distribution of lengths of cuts on its playlists. Given mean, μ = 135 sec Standard…

Q: Suppose y is drawn from a normal distribution with mean 5 and standard deviation 3. Suppose three…

A: Given: Let Y follows normal distribution. Mean of Y = μ=5 Standard deviation of Y = σ=3 Number of…

Q: If X is distributed as a normal distribution with a mean value of 10 and a variance equal to 3 and Y…

A:

Q: Derive the MGF of Cauchy’s distribution.

A: The pdf of Cauchy distribution is, f(x)=1π(1+x2) ;-∞≤x≤∞

Q: What is the difference between uniform distribution and binomial distribution?

A: The two distributions which are given are Uniform distribution and Binomial distribution.

Q: The standard normal curve is a normal probability distribution that has a mean of 1 and standard…

A: standard normal distribution:-x~N(μ,σ2) then z=x-μσ~N(μ=0,σ2=1)               ~N(0,1)is called…

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: Find the probability that a normal variable takes on values more than 1/6 standard deviations away…

A: The objective of this question is to find the probability that a normal variable takes on values…

Q: manufacturer knows that their items have a normally distributed length, with a mean of 12.3 inches,…

A: The objective of this question is to find the probability that the mean length of 11 randomly chosen…

Q: When do we use a mean and SD to define a continuous variable distribution?

A: Given information: For a continuous variable distribution with specified mean and standard…

Q: Explain kurtosis of the distribution?

A:

Q: Susan has been on a bowling team for 14 years. After examining all of her scores over that period of…

A: We are given information, Let, X=scores over that period of time The random variable X follows a…

Q: Find the probability of z greater than 0.5 if mean is 0 and standard deviation is 1.

A: Given, Mean=0 S.D=1 P(z>0.5)=?

Q: The time spent waiting in the line is approximately normally distributed. The mean waiting time is 4…

A: Given that  μ=4σ=9

Q: What is probability and how is it related to the normal distribution?

A: Probability is a branch of mathematics that deals with the study of random events and their…

Q: If the weights of students at A&M are normally distributed with a mean of 160 and a standard…

A: Given: μ = 160 σ = 25

Q: Identify if its true or false For any normal distribution, the probability that the random variable…

A: Out aim is to identify the statement is true of false

Q: when can a normal distribution be used to approximate a binomial distribution?

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials,…

Q: Assume that the square footage of a residential house in the US is normally distributed with a…

A: According to the given information in this question  We need to find the probability that it will be…

Q: Explain why t distributions tend to be flatter and more spread out than the normal distribution.

A: The shape of a t distribution changes with degrees of freedom (df). As the degrees of freedom…

Q: Explain the relationship between f-distribution and chi-square distribution.

A: Solution Given To explain the relationship between f-distribution and chi-square distribution.