Timed a survey asked about the number of people who eat breakfast almost every day (b) and the number of people who buy cereal at least once a month (c). the results of the survey are shown in the venn diagram. given that a randomly chosen person eats breakfast almost everyday, what is the probability that the person also buys cereal at least once a month?

Given a venn diagram in picture representing two sets.  The blue set B represents the number of people who eat break fast almost every day. the orange set C represents the number of people who buy cereal atleast once a month.

n(B) = 11+53 =64

n(c) = 53+4 = 57

n(BC) = 53

Required probability = (Prob that the person buys cereal atleast once a month/he eats breakfast almost every day)

= P(C/B) = P(BC)/P(B) = n(BC)/n(B) = 53/64

Hence answer is 53/64

Option 3 is the right answer.

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it