12. Happiness Groups of people aged 15-65 are randomly selected
and arranged in groups of six. The random variable x is the num-
ber in the group who say that their family and/or partner contribute
most to their happiness (based on a Coca-Cola survey).
WN - O
P(x)
0+
0.003
0.025
0.111
0.279
0.373
0.208

they go with it happens or they mite give a chance?

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

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