Descriptive Statistics and Probability Distribution Problem Sets Emily Noah
December 24, 2012
Descriptive Statistics and Probability Distribution Problems Sets
Descriptive statistics and probability distribution is two ways to find information with certain data giving. In Descriptive statistics the data can give a mode, mean, median, and range by the numerical information, which is giving to find the information. In probability distribution the data is collected and this is the way to determine the outcome of the information. Descriptive Statistics
In descriptive statistics this is where the mean, mode, median, and range can be found of different number to find the center of the information and to find the information, which is not the center. The mean stands for the total of the number information added together and divided by the number of the numbers. For example, a student has a 86%, 96%, 85%, and 90%, so the first thing is to add the percentages together which will give the student 357%, so the third step is to divide 357% by four because there were four different percentages. So the total of the student’s grade will be 89.25%, but the teacher would round the grade to an 89%. Median is the middle numbers added together after the numbers are arrange in order after you divide it by the number of numbers that are in the middle. So using the same numbers listed above the order would be 85%, 86%, 90%, and 96%. The middle two numbers are 86% and 90%, which the total of those numbers are 176%. The next step is to take 176% and divide that by two because there are two numbers in the middle because there was an even amount off numbers. The total of the two numbers divided by two is 88% percent. The mode in statistics is the number, which is used the most in a group of numbers or data. For example, 1, 3, 5, 5, 6, 6, 6,6,10, and 12, the mode in this example would be the number six because it is the number, which is used the most in this...
References: James, Joseph. (1999). Descriptive Statistics: Where they sit and how they fall.
Library Hi Tech 17, 4: 402-409. ProQuest.
Marshall, Gill., & Jonker, Leon. (Oct 2010). A concise guide to descriptive statistics.
Synergy: 22-25. ProQuest.
McClave, J. T., Benson, P. G., & Sincich, T. (2011). Statistics for business and
economics (11th ed.). Boston, MA: Prentice Hall.
Pirouzi, Fard., & Mir, Nabi. (Jun 2010). Probability plots and order statistics
of the standard extreme value distribution. Computational statistics 25. 2: 257-267. ProQuest.
Please join StudyMode to read the full document