Airplane Speeds The airborne speeds in miles per hour of

21

planes are shown. Find the approximate values that correspond to the given percentiles by constructing a percentile graph.

Class	Frequency
366 - 386	4
387 - 407	3
408 - 428	3
429 - 449	2
450 - 470	2
471 - 491	1
492 - 512	2
513 - 533	4
	21

b)Find the approximate values that correspond to the given percentiles by using the percentile graph. Round your answers to the nearest whole number.

Percentiles	Percentile values
7th
22nd
63rd
70th
98th

help me please