UNIT 2: Processing, representing and analysing data

Question 1

Angles in pie chart formula

Answer 1

(Frequency / Total) × 360

Question 2

Comparative Pie Chart formula

Answer 2

√(F1 ) / √(F2 ) = r1 / r2

Question 3

Lower Quartile Q1

Answer 3

25% of the population are below this value.

Question 4

Median Q2

Answer 4

50% of the population are below this value and 50% population are above this value.

Question 5

Upper Quartile Q3

Answer 5

25% of the population are above this value

Question 6

Interquartile Range (IQR)

Answer 6

Q3−Q1

Question 7

Histogram with unequal widths formula

Answer 7

frequency density = frequency / class width