The following table gives the lifetimes of 400 neon lamps: Lifetime (in hr)300−400400−500500−600600−700700−800800−900900−1000Number of lamps14566086746248 (i) Reperesent the given information with the help of a histogram. (ii) How may lamps have a lifetime of more than 700 hours?

The following table gives the lifetimes of 400 neon lamps: Lifetime (i

1.	The following table gives the lifetimes of 400 neon lamps: Lifetime (in hr)300−400400−500500−600600−700700−800800−900900−1000Number of lamps14566086746248 (i) Reperesent the given information with the help of a histogram. (ii) How may lamps have a lifetime of more than 700 hours?
Answer» The following table gives the lifetimes of 400 neon lamps: $\begin{matrix} Lifetime (in hr) & 300 - 400 & 400 - 500 & 500 - 600 & 600 - 700 & 700 - 800 & 800 - 900 & 900 - 1000 Number of lamps & 14 & 56 & 60 & 86 & 74 & 62 & 48 \end{matrix}$ (i) Reperesent the given information with the help of a histogram. (ii) How may lamps have a lifetime of more than 700 hours?