What term describes a numerical summary derived from a sample?

What term describes a numerical summary derived from a sample?

• A. Statistic
• B. Representativeness
• C. Non-Probability Sampling
• D. Accidental Sampling

Answer: (A)

A statistic is a numerical summary derived from a sample. It’s a value calculated from the data you’ve collected, like the sample mean, sample proportion, or sample standard deviation, and it serves as an estimate of a population parameter. The population counterpart you’re estimating with it is called a parameter. Representativeness describes how well the sample reflects the population, not a numeric summary. Non-probability sampling and accidental sampling refer to how you choose participants, again not to a numerical summary of the data.

A statistic is a numerical summary derived from a sample. It’s a value calculated from the data you’ve collected, like the sample mean, sample proportion, or sample standard deviation, and it serves as an estimate of a population parameter. The population counterpart you’re estimating with it is called a parameter. Representativeness describes how well the sample reflects the population, not a numeric summary. Non-probability sampling and accidental sampling refer to how you choose participants, again not to a numerical summary of the data.