Question

Please explain following:

1. Statistics is to investigate some characters of a population by using a sample from it.

            a. True                         b. False

2. A sample usually reflects the population perfectly.

            a. True                         b. False

3. Statistics and probability theory refer to a same subject of study.

            a. True                         b. False

4. Probability theory is _____________________.

            a. a study of data processing                             b. a study of chances

            c. a field of statistics                                          d. another name of statistics

5. A key word of statistics is _________________.

            a. mean                        b. standard deviation                c. sample                      d. accuracy

6. Statistics is synonymous with data processing.

            a. True                         b. False

Answer 1

1) Since we take the sample to estimate some characteristics (parameter) of the population. So, Statistics is to investigate some characters of a population by using a sample from it is the correct statement.

True

A sample is of various types like the random sample, systematic sample, cluster sample. The only random sample reflects the population perfectly. A sample usually reflects the population perfectly is the wrong statement.

False

3) Statistics deals with data & probability is the chance of occurrence of an event in a random experiment. So, Statistics and probability theory refer to the same subject of study.

True

4) Probability theory is a study of chances (b).

5) A keyword of statistics is mean (a)

6) Statistics is synonymous with data processing is the correct statement.

True