Here, you know that 12 people answered.
Therefore :
Take the "M" for mean :


In short, you answer would be C. 3.5.Hope this helps !
Photon
Answer:
The required probability is, 0.78
Step-by-step explanation:
There are, (52 - 13) = 39 cards which are not spade
5 cards can be chosen from the deck of 52 cards in
ways
and out of these 5 choices, none of them will be spade in,
ways
So,
P(None of the chosen cards is spade)
= 

Hence,
P(out of these 5 choices, at least one card is spade)

= 0.78
I believe it is Complimentary
5/22 I’m pretty that’s the answer
4.5% of 545 is 24.525, rounding to the nearest thousandth 24.53. (545 + 24.53 = $569.53