Yusif Morsy

Definition

Shows the probabilities of discrete outcomes

Uniform Distribution

All outcomes are equal and same possibility of happening. Ex. deck of cards. A coin, as the probability of getting either heads or tails in a coin toss is the same. Can be displayed as a bar or line graph with…

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The Power of Data Science

Univariate Data

Definition

Deals with one variable . Major target is to describe. No relations or causes. Ex. Salaries of workers. How many students in MSBA program own Mac laptop?

Statistical Analysis

Measure of Central Tendency (Mean-Median-Mode). Outliers and interquartile range. Minimum, Maximum, Variance, Standard Deviation and Mean Absolute Deviation…

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Bell-curve/shape

Perfect distribution with only one peak. Skewness coefficient equal = 0 because the mean equals to the median. Mean=Median= Mode. Skewness = (Mean-Median )/Standard deviation. Left half of the graph is a mirror of the right half of the graph.

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1-Frequency polygons

Looks like a line graph. You make a dot for each observation. Class midpoint on x-axis and frequency on y-axis. Drawn over a histogram. The midpoint of a bin is calculated by adding the upper and lower boundary values of the bin and dividing the sum by 2.

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