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Answer:
What is Data: Data are units of information, often numeric, that are collected through observation. In a more technical sense, data are a set of values of qualitative or quantitative variables about one or more persons or objects, while a datum is a single value of a single variable.
How are you going to collect data?: There are various methods of collecting primary, quantitative data. Some involve directly asking customers for information, some involve monitoring your interactions with customers and others involve observing customers' behaviors. The right one to use depends on your goals and the type of data you're collecting.
How do you differentiate tally marks from frequency?: The representation of the various observations and tally marks in a form of table is the frequency distribution. The frequency is the number of the times an observation occurs. It is the number of repetitions. ... The number of the students is the frequency.
There you go!brainliest pleasee!