Answer:
To complete the computer setup, to hear audio, to share audio.
Explanation:
A computer is not <u>really</u> complete without speakers.
So that you can actually hear the computer's audio.
So that you can have multiple people hear the same audio. (Headphones do not do this)
I think that the likelihood will still be 0.8 as that means that 8 out of 10 calls will be resolved within one hour so the 7 out of 10 falls within that likelihood so therefore the callers can go by that assumption and be fairly confident that they have quite a high likelihood of having their problems resolved within one hour.
