7. The ages of participants in a bonspiel are normally distributed, with a mean of 40 and a standard deviation of 10
years. What percent of the curlers are between 40 and 50?
a. 68%
b. 95%
c. 16%
d. 34%

what graph

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 %

here is a big fat