Thursday, November 8

Data Statistics Probability

Introduction to data statistics probability:

Let us see about data statistics probability.Probability is connected with some irregularity. Know what outcomes may happen, but not exactly which one. The set of probable outcomes plays an essential role. We call it the sample space and point out  by S. The elements of S called outcomes. Statistics is the study of information. Statistics contains the descriptive statistics and the inferential statistics. The descriptive statistics is the study of methods and tools for grouping data, and mathematical models.

Data Statistics Probability - Formula and Example

Formula

In general,



Example:

1)There are 6 balls in a bag. 3 are blue, and 3 are red. What is the probability that a blue ball will be picked?

Number of ways it can happen: 3 (there are 3 blues)

Total number of outcomes: 6 (there are 6 balls in total)

So the probability is 3/6 = 2.

2)There are 7 pens in a box.2 are black color pen.3 are blue color pen.2 are red color pen.What is the probability that a black pen will be picked?

Number of ways is occurs: 2(there are 2 black color pen)

Total number of outcomes :7(there are 7 pens in total)

So the probability is 2/7=0.28

Understanding formula for conditional probability is always challenging for me but thanks to all math help websites to help me out.

Data in Statistics and Probability

Data are tasks of values onto study of events and objects. They can be classified by their coding properties and the attributes of their fields and their ranges.

Data can be collected in a lot of ways. The easy way is the direct observation. One of the most ordinary ways of collecting data is surveying.The data collected may be a combination of the qualitative and the quantitative data.

One more method of data collection is sampling. In this method, information about a large group is considered by assembly data about selected individual members of the group.

Types of Data

•    Primary Data

•    Secondary Data

•    Qualitative data

•    Quantitative data

Descriptive information is the qualitative data . Numerical information is the quantitative data.

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