The following table gives the lifetimes of 400 neon lamps: Lifeti

The following table gives the lifetimes of 400 neon lamps: Lifetime (in hr) 300−400 400−500 500−600 600−700 700−800 800−900 900−1000 Number of lamps 14 56 60 86 74 62 48 (i) Represent the given information with the help of a histogram.(ii) How many lamps have a lifetime of more than 700 hours?

Answer» The following table gives the lifetimes of 400 neon lamps:

Lifetime (in hr)	300−400	400−500	500−600	600−700	700−800	800−900	900−1000
Number of lamps	14	56	60	86	74	62	48

(i) Represent the given information with the help of a histogram.

(ii) How many lamps have a lifetime of more than 700 hours?