Show work for everything, plus an explanation, if you could you.

1. is it possible to u...

Mathematics, 03.12.2019 07:31 dgayles8761

# Show work for everything, plus an explanation, if you could you.

1. is it possible to use the formula p(a and b) = p (a) x p (b|a)when events a and b are independent? explain your reasoning.

2. according to a survey, about 58% of families sit down for a family dinner at least four times per week. you ask 5 randomly chosen families whether they have a family dinner at least four times per week.

a)draw a histogram of the binomial distribution for the survey.

b)what’s the most likely outcome of the survey?

c)what’s the probability that at least 3 families have a family dinner four times per week?

3. the surface area of the earth is about 196.9 million square miles. the land area is about 57.5 million square miles and the rest water. what’s the probability that it will hit the water?

4. three volunteers are chosen at random from a group of 12 to .

a)what’s the probability that you, your friend and your brother is chosen?

b)what’s the probability that you are the cook, your brother the lifeguard, and your friend the counselor? (the first person chosen will be counselor, second will be lifeguard, and third will be the cook.)

Answers: 3

Mathematics, 04.02.2019 15:36

Line gh passes through points (2, 5) and (6, 9). which equation represents line gh? y = x + 3 y = x – 3 y = 3x + 3 y = 3x – 3

Answers: 1

Mathematics, 03.02.2019 17:11

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Answers: 2

Mathematics, 03.02.2019 11:11

In triangle abc,d,e,f,.are the midpoints of sides bc,ac,ba.a line through c drawn parallel to de meets fe at g. prove that area of triangle def is equal to the area of the triangle ceg

Answers: 1