Statistic and probablilty

Probability How likely something is to happen. Many events can't be predicted with total certainty. The best we can say is how likely they are to happen, using the idea of probability. NEXT A common way of displaying bivariate data when both variables are quantitative is using a scatter plot. A scatter plot has a title, axes with labels, and exactly like it sounds little dots scattered around, one dot for each data point.

Probability and Statistics Scatter Plots

It's like graphing constellations. Now let's be sure Orion's pants don't fall down. A scatter plot is not to be confused with Scattergories or scat singing. However, both of those sound like much more of a party.

Sample Problem Make a scatter plot for the data contained in the following table: We'll put the first variable on the x-axis, the second variable on the y-axis, and set up the scatter plot like this: We've filled in a scale on each axis that makes sense given the data in the table.

We don't need to have 4 feet or pounds on the graph, since none of our slightly edited data values are close to those numbers.

The funny jagged lines in the lower left corner show that we're skipping numbers. If we zoom in on the "height" axis, the jagged line shows that we're skipping the numbers from 0 to 5 on the scale, because we don't need them: Similarly, the jagged line on the "weight" axis shows that we're skipping the numbers up tobecause we don't need them.

If you're wondering why we don't include them anyway, try putting together a graph with all of these numbers and get back to us when you're done. Done yet? We rest our case. Now for each line in the table, we plot a point whose x-value is the height and whose y-value is the weight.

Sometimes the dots in a scatter plot group together in a thick band or swath that looks like it's trying to be a line. Ugh, what posers. If this "line" slopes up, we say there's a positive correlation between the two variables.

As one variable goes up, so does the other. If the line slopes down, we say there's a negative correlation between the two variables. As one variable goes up, the other goes down: The word "correlation" can be roughly chopped up into two parts: Two variables have a correlation either positive or negative if they have some sort of relation with each other.

This relation can be as vague as "if variable 1 goes up, then so does variable 2.alphabetnyc.com – Compare OTU frequencies across sample groups¶. Description: This script is used to compare OTU frequencies in sample groups and to ascertain whether or not there are statistically significant differences between the OTU abundance in the different sample groups.

Conditional Probability Calculator. This calculator will compute the probability of event A occurring, given that event B has occurred (i.e., the conditional probability of A), given the joint probability of events A and B, and the probability of event B. Please enter the . Physics 7 Higher Moments Of course you can calculate the rth moment of a distribution if you really want to. For example, the third central moment is called . Menu Pre-Algebra / Probability and statistic / Finding the odds. Odds are used to describe the chance of an event occurring. The odds are the ratios that compare the number of ways the event can occur with the number of ways the event cannot occurr. Mathplanet is licensed by.

Physics 7 Higher Moments Of course you can calculate the rth moment of a distribution if you really want to. For example, the third central moment is called .

However, probability theory contains much that is mostly of mathematical interest and not directly relevant to statistics. Moreover, many topics in statistics are independent of probability theory.

Moreover, many topics in statistics are independent of probability theory. Data Analysis, Statistics, and Probability introduces statistics as a problem-solving process. In this course, you can build your skills through investigations of different ways to organize and represent data and describe and analyze variation in data.

List of formulas & calculators for statistics & probability functions can be used to perform or verify the results of statistical or probability related calculations. It's the statistics & probability functions formula reference sheet contains most of the important functions for data analysis. Conditional Probability Calculator. This calculator will compute the probability of event A occurring, given that event B has occurred (i.e., the conditional probability of A), given the joint probability of events A and B, and the probability of event B.

Please enter the .

Formulas & Calculators for Statistics & Probability Functions