In a continuous distribution the   Multiple Choice   PDF shows the area under the curve.   CDF is used to find left-tail probabilities.   CDF is usually the same as the PDF.   PDF is usually higher than the CDF.

Q: Fifty five percent of the students in a class of 135 of planning to go to graduate school, Find…

A: Answer: From the given data, Fifty five percent of the students are planning to go to graduate…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: The bone density test scores that can be used as cutoff values separating the lowest 2​% and highest…

Q: Variability in a distribution that would be otherwise non-normal may tend towards normality with…

A: When the distribution is non-normal and if random sampling is used, there are chances that the…

Q: The time it takes a runner of a marathon in a certain city to fifinish the race (fifinish time) has…

A: Given Data Population Mean,μ = 195.0 Population Standard Deviation,σ = 25.0

Q: Energy consumption for single family comes is a mean of 1050kw and standard deviation of 218kw. Find…

A: Given information- Population mean, μ = 1050 kw Population standard deviation, σ = 218 kw We have to…

Q: The mean always has a z-score (value) →

A: When the data is converted into z scores, the mean will always end up being zero.

Q: The distribution of sample means tends to be a normal distribution. true or false?

A: This question explores the characteristics of the distribution of sample means. Specifically, it…

Q: Please Find the mean and variance of Binomial variable X having p=0.09 and n=2.

A:

Q: Assume that the results are normally distributed. Pedro took an exam in a class in which the mean…

A:

Q: College students average 8.2 hours of sleep per night with a standard deviation of 45 minutes. If…

A: Given Data Population Mean,μ = 8.2 Population Standard Deviation,σ = 45.0