Math7

• it is the study of collectiong, organizing and analyzing data

  Statistics
• refers to the information such as facts and numbers used to analyze something or to make decisions

  Data
• what are the two types of data

  qualitative and quantitative
• refers to data that can be expressed by numbers

  Quantitative
• pertains to information that can be grouped into different categories

  Qualitative
• this is a data than can be represented by whole numbers, usually collected bt counting

  Discrete data
• this is a data where there are infinitely many possible values between any two given data points

  Continous data
• What are the different sampling techniques

  1. Simple Random Sampling
  2. Stratified Random Sampling
  3. Cluster Random Sampling
  4. Systematic Random Sampling
• In this metjod, everyone in the population has a equal chance of being chosen to be part of the sample

  Simple Random Sampling
• It is a sampling method that divides the big population into smaller groups called stratas

  Stratified Random Sampling
• In this sampling technique, the population is divided into clusters

  Cluster Random Sampling
• This is created by choosing members systematically in an ordering list

  Systematic Random Sampling
• There are two types in data collection, what are the two types

  Direct and Indirect method
• Data is collected using a measuring tool such as, ruler or timer

  Actual Measurement
• Data is collected by asking a respondents a questions face-to-face

  Interview
• Questions or choices are prepared and distibuted to respondents

  Survey/Questionnaire
• It is the way of gathering data by watching members of the sample

  Observation
• This is a type of observation where you are watching interactions or patterns of behavior as they occure

  Direct Observation
• This is a type of obeservation where you are looking for the result of interactions or behaviors

  Indirect Observation
• The members of the sample are chosen because they can be conveniently reached by the researcher

  Convenient Research
• The members of the sample are chosen because they are chosen because they possess characteristics relevant to the study

  Purposive Sampling
• The researcher chooses one respondent and ask him to refer another person that falls under the same category

  Snowball Sampling
• This is a tabular arrangement of data that displays the frequency of each possible value

  Frequncy Distribution table
• This graph shows the change or trends in the data value

  Line Graph
• This is effective for comparison among data values

  Histogram or Bar Graph
• This shows the distribution, percentages, or parts of a whole

  Pie Chart
• This is a diagram wherein every data values in divided into its first digit/s (stem) and its last digit (leaf)

  Stem an Leaf Plot