Essays on Probability Distribution

Question one

The descriptive statistics is the analysis of data for describing, showing, and summarizing records in a meaningful way so that the patterns to emerge from the information. However, it does not allow the analysts to draw conclusions beyond the data to be analyzed concerning any hypotheses being made. The types of descriptive statistics are as follows: The measure of central tendency. It is the way of describing the central position of a distribution for the collection of data. That is the frequency distribution the distribution pattern of records of a company particularly from the lowest to the highest. Therefore, ...

Final Project

Final Project

Introduction

Statistical analysis is an integral part of the clinical trial and nursing. The purpose of this paper is to demonstrate the understanding the essence of the various methods of statistical processing of medical data, without going into details of mathematical calculations. We consider the most useful and popular types of analysis of the nursing, clinical and experimental medicine.

There are a number of indicators are included in the term of "descriptive statistics". They characterize the sample as a whole. Each researcher knows such concept as average (mean) value, which is calculated by dividing the sum of the ...

Problem #1

Plot the histogram of the number of cases of accident for each group of street speed, km/h. These histograms describe the distribution of the number of cases of accident that have happened at the speed of 40, 60, 80 and 100 km/h. The distribution of the accidents at the speed of 40 km/h and 60 km/h is right skewed. The distribution of accidents at the 80 km/h speed is almost symmetric and the distribution of accidents at 100 km/h is uniform.

Problem #2

The average number of accidents at the speed of 40 km/h is 3.1 with a standard deviation of ...