Question

the following table gives the life times of 400 neon lamps :
life time. no. of lamps
300-400. 14
400-500. 56
500-600. 60
600-700 86
700-800. 74
800-900. 62
900-1000. 48
1. represent the given information with the help of histogram .
2. how many lamps have a life time of more than 700 hours ?​

Answer 1

Answer:

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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

HOPE IT HELPED!!

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Step-by-step explanation:

Answer 2

Answer:

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