Sales Toll Free No: 1-855-666-7440

# Probability and Statistics

Students can learn about Probability and statistics here. They can get probability and statistics help from the online tutors.

Probabilty is way of expressing object or the individual event.Probability theory, that is used extensively in such areas of study of mathematics, statistics, finance etc.Therotical probabilty is the likeliness of an event happening based on all the possible outcomes.Experimental probability of an event is the ratio of the number of times the event occurs to the total number of trials.

Compound event is the probability of occurrence depends upon the probability of occurrence of two or more independent events.Two events are dependent if the outcome or occurrence of the first affects the outcome or occurrence of the second it is called dependent event.

Probability is a branch of mathematics useful in calculating the number of events and for analyzing the data given.It involves the following topics in grade 8:

1)Data handling

2) Probability

Data handling

Data can be handled in different ways in probbality,in statistics it helps in representing numerical data with respect to experiments.It deals with not only the collection, analysis and interpretation of data, planning of the collection of data, in terms of the design of surveys and experiments.Interpretation of statistical information can often involve the development of a null hypothesis,in this assumption we can measure what ever is present.Data can be handled and analyzed easily by different ways by drawing graphs and maintaining the values in tables.

Mean is sum of numbers by total number.Median is the middle value of the list.Mode is common frequent vale.In the given population and sample we can easily identify the mean ,median and mode.

Probability

Probability is way of expressing object or the individual event.Probability theory, that is used extensively in such areas of study as mathematics, statistics, finance etc.Theoretical probability is the likeliness of an event happening based on all the possible outcomes.Experimental probability of an event is the ratio of the number of times the event occurs to the total number of trials.

Compound event is the probability of occurrence depends upon the probability of occurrence of two or more independent events.Two events are dependent if the outcome or occurrence of the first affects the outcome or occurrence of the second it is called dependent event.

## Introduction to Probablity

A probability is a factor to determine the favorable situations in any task. It is generally represented in fractions; the fraction is number of favorable outcomes by number of total possible outcomes. The probability of any event is represented as P(E). probability calculator help us doing this problems easily and you can also avail probability homework help from our expert tutors..

Probability of any event is:

P (E) = Number of favorable outcomes/Total possible outcomes.

The Probability of not occurring any event is P (?) = 1- P (E)

Properties:

1) The probability of any event lies in between 0 and 1.

2) The probability of getting all favorable out comes is from all possible outcomes is ‘1’.

3) The probability of getting none is ‘0’.

Types

We generally have two types of probability functions. Events occur by compromising and not compromising.

Consider any two events A and B the probability are defined as below.

P(A ? B) = Probability of (A) x Probability of (B)

P(A B) = Probability of (A) + Probability of (B)

AND is used when there is no compromise in an event and OR is used when there is a compromise in an event.

Chapter 1: Introduction to probability

Chapter 2: Foundations of probability theory

Chapter 3: Complement of an event

Chapter 4: Mutually exclusive events

Chapter 5: Independent events

Chapter 6: Dependent events

Chapter 7:Conditional probability

Chapter 8: Probability practice exercieses

Chapter 9: Geometric probability

## Introduction to Statistics

Statistics help in represnting numerical data with respect to experiments.It deals with not only the collection, analysis and interpretation of data, planning of the collection of data, in terms of the design of surveys and experiments.Interpretation of statistical information can often involve the development of a null hypothesis,in this assumption we can measure what ever is present .

Mean is sum of numbers by total number.Medain is the middle value of the list.Mode is common frequent vale.In the given population and sample we can easily identify the mean ,median and mode.

For more elaborate explanation on the topics and help with homework problems students can get help from the probability and statistics help page.

Chapter 1:Introduction to Statistics

Chapter 2: Mean, Median and Mode

Chapter 3: Stem and Leaf Plots

Chapter 4:Bar Graphs

Chapter 5: Pie Charts

Chapter 6: Normal Distribution

Chapter 7: Data Handling

Chapter 8: Survey Sampling

Chapter 9: Regression and Regression Analysis