Systematize Statistic Pdf For Free

(a) Statistics are aggregate of facts (b) Statistics must be numerically expressed. (c) Statistics are collected for a pre-defined purpose (d) Statistics should be collected in a systematic manner. (e) Statistics are placed in relation to each other.

The most important concepts covered in Statistics include mean, median, mode, range, and standard deviation.

Basics of Statistics The central tendencies are mean, median and mode and dispersions comprise variance and standard deviation. Mean is the average of the observations. Median is the central value when observations are arranged in order. The mode determines the most frequent observations in a data set.

Step 1: Write your hypotheses and plan your research design. ... Step 2: Collect data from a sample. ... Step 3: Summarize your data with descriptive statistics. ... Step 4: Test hypotheses or make estimates with inferential statistics. ... Step 5: Interpret your results.

Sir Ronald Aylmer Fisher, a British polymath, is widely regarded as the father of modern statistics. Born on 17 February 1890 in East Finchley, London, England, his extensive work in the fields of mathematics, statistics, biology, genetics, and academia, laid the foundations for modern statistical science.

We begin by introducing two general types of statistics: Descriptive statistics: statistics that summarize observations. Inferential statistics: statistics used to interpret the meaning of descriptive statistics.

Consider statistics as a problem-solving process and examine its four components: asking questions, collecting appropriate data, analyzing the data, and interpreting the results. This session investigates the nature of data and its potential sources of variation.