Question

a) 0.3
b) 0.35
c) 0.305
d) 0.355

Please answer me fast with explanation​

Answer 1

Answer:

Option d) 0.355

Step-by-step explanation:

Mean = (∑x*f)/∑f

where ∑ means sum of all

Mean = (0.1*20+0.2*60+0.3*20+0.4*40+0.5*10+0.6*50)/(20+60+20+40+10+50)

=71/200

=0.355