Question

Question 5 The following table gives the life times of neon lamps: Length (in hours) Number of lamps 300 − 400 14 400 − 500 56 500 − 600 60 600 − 700 86 700 − 800 74 800 − 900 62 900 − 1000 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 1

Answer:

REF.Image

Numbers of neon lamps having their life time more than 700

= No. of neon lamps having their life time as 700-1000

= No. of neon lamps having their life time (700-800) + = No. of neon lamps having their life time 800-900+ = No. of neon lamps having their life time 900-1000 hours

=74+62+48=184