PROBABILITY AND STATISTICS I

 is the science of the development of applications of the most effective methods for    planning experiments, obtaining data, and then analyzing, interpreting, and drawing conclusions based on the data. 

• Statistics
• Variable
• Data collection
• Qualitative data
• Quantitative data

an attribute that describes a person, place, thing, or idea.

• Statistics
• Variable
• Data collection
• Qualitative data
• Quantitative data

the process of gathering and measuring information on variables of interest, in an established systematic fashion that enables one to answer stated research questions, test hypotheses, and evaluate outcomes.

• Statistics
• Variable
• Data collection
• Qualitative data
• Quantitative data

are measurements for which there is no natural numerical scale, but which consist of attributes, labels, or other nonnumerical characteristics.

• Statistics
• Variable
• Data collection
• Qualitative data
• Quantitative data

are numerical measurements that arise from a natural numerical scale.

• Statistics
• Variable
• Data collection
• Qualitative data
• Quantitative data

a variable which can assume finite, or at most countably infinite number of values

• DISCRETE
• CONTINUOUS
• NOMINAL SCALE
• ORDINAL SCALE
• INTERVAL SCALE

a variable which can assume infinitely many values corresponding to a line interval

• DISCRETE
• CONTINUOUS
• NOMINAL SCALE
• ORDINAL SCALE
• INTERVAL SCALE

of measurement arises when we have variables that are categorical and non-numeric or where the numbers have no sense of ordering.

• DISCRETE
• CONTINUOUS
• NOMINAL SCALE
• ORDINAL SCALE
• INTERVAL SCALE

also deals with categorical variables like the nominal level, but in this level ordering is important, that is the values of the variable could be ranked. 

• DISCRETE
• CONTINUOUS
• NOMINAL SCALE
• ORDINAL SCALE
• INTERVAL SCALE

tells us that one unit differs by a certain amount of degree from another unit.

• DISCRETE
• CONTINUOUS
• NOMINAL SCALE
• ORDINAL SCALE
• INTERVAL SCALE