Answer:
- 9 batteries lasted more than 14 hours
Step-by-step explanation:
Reading the box and whisker plot for Brand X, we identify that:
25% of batteries lasted for 10 - 14 hours and the rest lasted longer than 14 hours.
It means the number of batteries lasted more than 14 hours is:
- 12*(100 - 25)/100 = 12*3/4 = 9
