You are given: (i) Losses follow an exponential distribution with mean 0. (ii) A random sample of 20 losses is distributed as follows: Loss Range Frequency [0, 1000] 7 (1000, 2000] (2000, o) 7

Q: z score co z sore co raw score e raw score

A: Given that  Mean (μ)=35 Standard deviation (σ) = 4   we know that ,   z=(x-μ)σ (a)  Given x=31 So,…

Q: For the normal distribution shown below, what area is contained between -2 and 1? -3 -2 -1 3 T2

A: Normal distribution is the most common continuous probability distribution. In a normal distribution…

Q: Q5: Let X be a random variable following a normal distribution with mean 14 and variance 4.…

A: Given, Mean μ = 14Variance σ2 = 4Standard deviation σ = 2 P(X-2 > c) = 0.95

Q: TRUE OR FALSE: The mean for the distribution of sample means is always equal to the mean for the…

A: We have to identify statement is true or false.

Q: My teacher didn't explain this well.   1. X is a Normal random variable with a mean of 0 and a…

A:

Q: find the 80th percentile of a normal distribution where x=n(50,10)

A: Step 1:Find the 80th percentile of a normal distribution.X∼N(50,10)=X∼N(μ,σ)Step 2:Find the Z-score…

Q: A normal distribution has μ = 32 and a = 5. (a) Find the z score corresponding to x = 27. (Enter an…

A: Given that  X~N (μ = 32  , σ = 5) μ= 32  , σ = 5 Formula for Z-score Z=(X-μ)/σ

Q: A particular fruit's weights are normally distributed, with a mean of 583 grams and a standard…

A: Mean = 583 Standard deviation = 35 Sample size = 18

Q: Suppose a batch of metal shafts produced in a manufacturing company have a variance of 6.25 and a…

A: given data, variance =σ2=6.25σ=6.25=2.5μ=206n=90the probability that the mean diameter of the sample…

Q: 3. Aggregate risk S comes from compound Poisson random variable with N- P(100) and individual claims…

A: The aggregate risk S comes from compound Poisson random variables with  individual claims X are…

Q: A normal distribution has u = 30 and o = 5. (a) Find the z score corresponding to x = 25. (b) Find…

A:

Q: Suppose cattle in a large herd have a mean weight of 1228lbs and a variance of 8100. What is the…

A:

Q: Let data be x1, . . . , xn. each data-point xi is normally distributed, with unknown mean θ and…

A: We have a random sample X1,X2,....,Xn which is normally distributed with unknown mean θ and standard…

Q: The per capita energy consumption level (in kilowatt-hours) in a certain country for a recent year…

A: The population mean is 2272 and population standard deviation is 591.2.

Q: A sample of n = 10 scores has a mean of M = 3. What is ΣX for this sample?

A: Solution: From the given information, M=3 and n=10.

Q: Suppose the relationship between Y and X is given by: Y = 30 - 25X + error  What is the expected…

A:

Q: 12. The red blood cell count for a population of adult males can be approximated by a normal…

A: GivenMean(μ)=5.4variance(σ2)=0.16standard deviation(σ)=0.16=0.4

Q: What is the value for a score that has a z= +1.5 from population with a mean of μ=30 and a standard…

A: Z score = +1.5 Mean = 30 Standard deviation = 6

Q: What is the probability of randomly selecting a score with a value greater than X = 63 from a…

A: Given,Mean (μ) =60Standard deviation (σ)=12And X=63