The coefficient of range of the weights of 10 students from the following data:
41, 20, 15, 65, 73, 84, 53, 35, 71, 55 is
1
1.433
2
0.696
3
0.675
4
1
The coefficient of range of the weights of 10 students from the following data:
41, 20, 15, 65, 73, 84, 53, 35, 71, 55 is