2.2.2 Area in a histogram

Time (s)	$0<t≤40<t\leq4$	$4<t≤104<t\leq10$	$10<t≤1510<t\leq15$
Frequency	8	24	10

Assuming values are uniformly distributed within each class, estimate the probability that a randomly selected time is below 7 seconds.

[4]

Time (s)	$0<t≤40<t\leq4$	$4<t≤104<t\leq10$	$10<t≤1510<t\leq15$
Frequency	8	24	10

Assuming values are uniformly distributed within each class, estimate the probability that a randomly selected time is below 7 seconds.

[4]

2.2.2 Area in a histogram Questions