Question

If x1, x2, x3,….., xn are the observations of a given data. Then the mean of the observations will be:

• A. Sum of observations/Total number of observations
• B. Sum of observations +Total number of observations
• C. Total number of observations/Sum of observations
• D. None of the above

Answer 1

Answer:

A. Sum of observations/Total number of observations

In mathematics and statistics, the arithmetic mean, arithmetic average, or just the mean or average is the sum of a collection of numbers divided by the count of numbers in the collection. The collection is often a set of results from an experiment, an observational study, or a survey.