A hotel has 90 rooms. The table summarises information about the number of rooms occupied each day for a period of 200 days.

i. Draw a cumulative frequency graph on graph paper to illustrate this information.

ii. Estimate the number of days when more than 30 rooms were occupied.

iii. On 75% of the days at most n rooms were occupied. Estimate the value of n.

Transcribed Image Text:

Number of rooms pied 1-20 21-40 41-50 51-60 61-70 71-90 Frequency idgs 10 32 62 50 28 18