K

1. WHICH OF THE FOLLOWING IS NOT A METHOD OF COLLECTION OF DATA

(A) TELEPHONE (B) INTERVIEW

(C) OBSERVATION (D) TALLY

2. ONE OF THE FOLLOWING IS NOT A MEANS OF DATA PRESENTATION

(A) CIRCLE DIAGRAM (B) BAR CHART

(C) MEAN GRAPH (D) LINE GRAPH

3. IF REPRESENT N2,500 HOW MUCH IS THE VALUE OF

(A) N15,000 (B) N 17,500

(C) N20,000 (D) N22,000

4. IN A LINE GRAPH WHICH OF THE FOLLOWING CORRESPONDS TO THE FREQUENCY OF EACH ITEM? (A) THE WIDTH OF EACH LINE (B) THE SIZE OF EACH LINE

(C) THE SPACE BETWEEN LINE (D) THE LENGTH OF EACH LINE

5. IN DRAWING A PIE CHART, WHICH OF THE FOLLOWING FEATURES IS THE MOST IMPORTANT? (A) SECTORIAL ANGLE OF THE CIRCLE (B) RADIUS OF THE CIRCLE

(C) PERIMETER OF EACH SECTOR OF THE CIRCLE (D) CIRCUMFERENCE OF THE CIRCLE.

HOME WORK

THE BAR CHART BELOW SHOWS THE NUMBER OF PATIENTS WHO ATTENDED AN EYE CLINIC OF A HOSPITAL IN A WEEK.

USE THE BAR CHART ABOVE TO ANSWER QUESTIONS 1-4 BELOW:

1. HOW MANY PATIENTS ATTENDED THE CLINIC ON THURSDAY?

2. IN WHICH DAY WAS THE ATTENDANCE HIGHEST?

3. NAME THE DAYS WHEN THE ATTENDANCE WAS LESS THAN 12 PEOPLE

4. CALCULATE THE TOTAL NUMBER OF PATIENTS DURING THE WEEK

A MAN SHARED N 180,000 AMONG HIS ONLY SON AND FIVE DAUGHTERS. THIS INFORMATION IS ILLUSTRATED ON A PIE CHART AND THE SECTORIAL ANGLE OF THE SON IS 75

5. CALCULATE THE SECTORIAL ANGLE OF EACH OF THE DAUGHTERS.