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How might Primary Data be obtained?
direct observation
What are the classifications of data in statistics?
Classifications of dataA. According to Nature1. Quantitative data- information obtained from numeral variables(e.g. age, bills, etc)2.Qualitative Data- information obtained from variables in the form of categories, characteristics names or labels or alphanumeric variables (e.g. birthdays, gender etc.)B. According to Source1. Primary data- first- hand information (e.g. autobiography, financial statement)2. Secondary data- second-hand information (e.g. biography, weather forecast from news papers)C. According to Measurement1. Discrete data- countable numerical observation.-Whole numbers only- has an equal whole number interval- obtained through counting(e.g. corporate stocks, etc.)2. Continuous data-measurable observations.-decimals or fractions-obtained through measuring(e.g. bank deposits, volume of liquid etc.)D. According to Arrangement1. Ungrouped data- raw data- no specific arrangement2. Grouped Data - organized set of data- at least 2 groups involved-arranged
A frequency distribution is obtained by?
A frequency distribution can be best interpreted if it is transformed into a frequency table with the tabulated data obtained from data gatherings such as but not limited to: poll, survey, grade, questionnaire, demographic, monthly/semestral/annual report.
What does meterological data mean?
Meteorological data is information obtained from the atmosphere, Such as; barometric pressure, humidity, wind speed, and air temperature.
State the merits and demerits of primary and secondary data?
Secondary data helps in reducing time, effort and money required for the collection of data. It is easily available. It can be obtained from Text books, net etc.
