Answer:
280
Step-by-step explanation:
Notice it is +/-4 times standard deviation (0.65-0.04 = 0.61, 0.69-0.04=0.65)
That's almost everything. So (D) is the answer.
<span>99.993666</span>%
The answer to your questions is: 4, 2
(f+g) (x)= f(x) + g(f)
= IxI + 9 + (-6)
= IxI + 9 - 6
= IxI + 3
(f + g)(x) = IxI + 3