CUET Preparation Today
Which of the following is a statistic ? |
Selecting 10 employees from an organisation with 100 employees Selecting 10 students from a class and finding their mean height to represent average class height Finding mean income of all families in a city Finding median income of all families in a city |
Selecting 10 students from a class and finding their mean height to represent average class height |
The correct answer is Option (2) → Selecting 10 students from a class and finding their mean height to represent average class height A statistic is a numerical summary calculated from a sample of the population. Option 1: Only describes the process of selecting a sample, not calculating any sample measure. Option 3&4: Both involve calculating a measure for the entire population, making them parameters. Option 2: Involves selecting and calculating mean height to represent the class average. This is statistic. |
