The volume of the cone is 85.79 since the radius is 3.2
Te difference of 2 standard deviation of a population n1 & n2 is given by the formula:
sigma (difference)=√(sigma1/n1 + sigma2/n2), Plug:
sigma(d)= √(49/100 + 36/50)
Sigma(d=difference) =1.1
Answer:
Choice A.

Step-by-step explanation:
Use graphing calculator
I agree with him that’s the answer