percentile formula for grouped data
LB + [kN-cfb/fQk] i
percentile rank
[100/N][(P-LB)fp/i+cfp]
is a systematic study of materials and sources to establish facts to search for a new conclusion. The purpose of research is either to change or improve that already exists.
Research -
a way of organizing data is grouped according to set number of classes.
Frequency distribution table
the process of assigning meaning to the collected information and determining conclusions, significance, and implications of the findings.
Analyzing and interpreting Data
- the way of gathering data that uses printed questionnaires to elicit important information needed from the respondents.
Indirect Method
ways of gathering data must be used when you need to make clarifications and follow-up questions.
Direct Method
most appropriate statistical tool to use in analyzing and interpreting a set of responses that require a representation of a numerical average.
Mean
a set of responses that require representation of the distribution around the mean.
Standard Deviation
- is the most appropriate statistical measure to use when there is a need to see where a certain data point or value falls in a sample or distribution.
Measures of Position
research data gathered requires a description on how scatter are the data from each other.
Measures of Variability-
Formulating Statistical Research
1.) Collecting the data
2.) Organizing the data
3.) Presenting the Data
4.) Analyzing and interpreting the data
