Question

If mean of the following data is 86,then what is the value of p?
Wages
50-60
60-70
70-80
80-90
90-100
100-110

No. of workers
5
3
4
p
2
13

Answer 1

Answer:

Step-by-step explanation:

Lives in hours of is pieces are = 715, 724, 725, 710, 729, 745, 694, 699, 696, 712, 734, 728, 716, 705, 719

Arrange the above data in ascending order = 694, 696, 699, 705, 710, 712, 715, 716, 719, 721, 725, 728, 729, 734, 745

N = 15 (odd)

Median = (N+12)th terms

= (15+12)th terms = 8th terms = 716