(i) Einstein’s equation – 9
(ii) Einstein meets his future wife – 7
(iii) The making of a violinist – 3
(iv) Mileva and Einstein’s mother – 10
(v) A letter that launched the arms race – 15
(vi) A desk drawer full of ideas – 8
(vii) Marriage and divorce – 11
Why was Santosh sent to the local school?
When did she leave home for Delhi, and why?
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?
Why was Santosh sent to the local school?