Statistics

The middle value of an ordered array of numbers is the a. Mode b. Mean c. Median d. Standard Deviation

Which of these is a measure of dispersion:- a. Mean b. Median c. Quartile d. Standard Deviation Define the term as well

Variance of a dataset is 144, what is the Standard Deviation? Give a basic understanding of both the terms

Which of these measures are used to analyze the central tendency of data? A) Mean and Normal Distribution B) Mean, Median and Mode C) Mode, Alpha & Range D) Standard Deviation, Range and Mean E) Median, Range and Normal Distribution

Five numbers are given: (5, 10, 15, 5, 15). Now, what would be the sum of deviations of individual data points from their mean? A) 10 B)25 C) 50 D) 0 E) None of the above

A test is administered annually. The test has a mean score of 150 and a standard deviation of 20. If Ravi’s z-score is 1.50, what was his score on the test?

Which of the following statements are true about Bessels Correction while calculating a sample standard deviation? Bessels correction is always done when we perform any operation on a sample data. Bessels correction is used when we are trying to estimate ...

[True or False] Standard deviation can be negative.

What would be the Type I error? A) Concluding that listening to music while studying improves memory, and it’s right. B) Concluding that listening to music while studying improves memory when it actually doesn’t. C) Concluding that listening to music while studying does not ...