3) What proportion of scores are between 18 and 25, based on the following sample: 18 23 22 22 13 28 15 18 21 14 12 17

how to understand standard deviations

Question 3 The combined SAT scores for the students at a local high school are normally distributed with a mean of 1466 and a standard deviation of 310. The local college includes a minimum score of 784 in its admission requirements. What percentage of students from this school earn scores that satisfy the admission requirement? P(X> 784) = % > Next Question Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

But isn't the mean of the gamma distribution aplha (beta)

What is an Epidemic Curve? An epi curve is a visual display of the onset of illness among cases associated with an outbreak. You can learn a lot about an outbreak from an epi curve, such as The outbreak's time trend, that is, the distribution of cases over time Outliers, that is, cases that stand apart from the overall pattern A general sense of the outbreak's magnitude Inferences about the outbreak's pattern of spread The most likely time period of exposure (Source: Center for Disease Control, US) Here you will compare epi curves from three countries- South Korea, Italy, and the USA.   The table below shows the number of active cases in South Korea, Italy, and the USA.  The data is shown in two-day intervals starting on February 15 and ending March 17 (note March 17 is a one-day interval).    Cut and paste the data table into Excel or Google Sheets.  Make and X-Y Scatter Plot (with connecting lines).  This will be your epidemic curve.     South Korea Italy USA…

It is possible to have a standard deviation of -1 for some data set? True or False

Multiple Choice. Choose the letter of the correct answer. Write the letter of your answer before the number (2pts.) I. 1. This is the single value used to represent the parameter interest. a. Interval estimate

How does the curve change when the standard deviation is the same and the mean changes?

How to find the standard deviation

If a distribution has a mean of 46 and a standard deviation of 1, what value would be -2 standard deviations from the mean?