Answer:
a. 54.5
Explanation:
The computation of the median length of time required is shown below:
= (52 + 57) ÷ 2
= 109 ÷ 2
= 54.5
Simply we first add the 52 and 57 and then divide it by 2 so that the accurate median length of time can come
All other time which is mentioned is irrelevant. Hence, ignored it i.e 230 and 50 insurance coverage as this is not a part of the computation so we do not considered it