Answer:
32.5%
Step-by-step explanation:
Easy
remember
x^-m=1/(x^m)
so
f(-1)=4*7^-1=4*(1/(7^1))=4*(1/7)=4/7
f(2)=4*7^2=4*49=196
Answer:
It's actually C
Step-by-step explanation:
don't forget about the probability of 0 too
you have to add the two probability formulas
