Sam's scores for seven games of bowling are shown. 156, 177, 143, 151, 167, 161, 159
If Sam had scored 3 more points in each game, how would it have changed his mean
score?
A It would decrease by 3 points.
B It would increase by 3 points.
C. It would increase by a factor of 3.
D. It would not change.

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

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 %