UC Irvine Probability Distributions Standard Deviation and Variable Mean Questions
Question Description
Please answer HW questions. PLEASE SHOW FULL WORK ON PIECE OF PAPER
I used R Studio to knit my mean using my student ID. Here is the link https://mail-attachment.googleusercontent.com/atta…
Population Chart
| X | p |
| 0 | 0.25 |
| 2 | 0.25 |
| 6 | 0.25 |
| 8 | 0.25 |
Question #3
Calculate the mean of variable X. Explain what this means.
Question #4
Calculate the standard deviation of variable X. Explain what this means.
Question #5
Sketch the histogram. Take a picture of it and upload it here.
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The following questions are in reference to a sampling distribution (n=50).
Question #6
What is the expected value of the mean? Explain what this means.
Question #7
Calculate the standard error of the sampling distribution for sample sizes of 50. Explain what this means.
Question #8
Looking at the three sample means in R (how they were collected), what can be done to make them closer to the expected value?
Question #9
Sketch the sampling distribution. Label the expected value and standard error along with each sample mean. Take a picture of it and upload it here.
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