Identify whether the following situations refer to a parameter or statistic. (a) Parameter (b) Statistic

Question

1. A researcher wants to determine the mean electric consumption of the families in a barangay. From a random sample of families, a mean consumption of 130 kWh was identified.

2. A school principal surveys the mean general weighted average (GWA) of the students in the present school year. From a group of 50 random students, a mean GWA of 86.75 is determined.

3. The Chief Executive Officer (CEO) of a TV network wants to determine the median salary of his employees. Using a random sample of 25 employees, he distinguished a median salary of P35, 000.

4. A nutrition expert studies the modal height of teenagers and from a sample of 70 teenagers, he concluded that the modal height of teenagers is 165 cm.

5. A population researcher computes the average number of births per day and from a sample of 20 hospitals, he gathered a mean of 100 births.

Answer 1

A parameter is a characteristic of the entire population

A statistics is a characteristic of a sample

1. A researcher wants to determine the mean electric consumption of the families in a barangay. From a random sample of families, a mean consumption of 130 kWh was identified. statistic

2. A school principal surveys the mean general weighted average (GWA) of the students in the present school year. From a group of 50 random students, a mean GWA of 86.75 is determined. statistic

3. The Chief Executive Officer (CEO) of a TV network wants to determine the median salary of his employees. Using a random sample of 25 employees, he distinguished a median salary of P35, 000. statistic

4. A nutrition expert studies the modal height of teenagers and from a sample of 70 teenagers, he concluded that the modal height of teenagers is 165 cm. statistic

5. A population researcher computes the average number of births per day and from a sample of 20 hospitals, he gathered a mean of 100 births. statistic