Question

Out of 10 loaves on a shelf, 4 are three days old. If the store manager selects 5 loaves at random, what is the probability that:
a) one of the loaves is three days old?
Answeri got: 0.2381
b) x of the loaves is three days old?
Answer i got : P(xoftheloaves)=(4nCrx)(6nCr(5−x))/(10nCr5)

Is these answers correct?

Answer 1

this is continuation of problem 4 above:
a) Evaluate the probability distribution in problem 4, that is P(x│10,4,5) , for all meaningful values of x,
and summarize the results in a probability distribution table.
b) Plot these values on a coordinate system and show the probability distribution diagram.
c) For what value of x is the probability maximum? What does this imply?

Answer 2

if my answer above for the first question is right then can you explain how to do this second one because i didn't get it how to solve it.

Answer 3

I get your same answer for a.

Answer 4

b) C(6,5-x)*C(4,x)/C(10,5)....yeah...i agree with you on b too.

Answer 5

can you help with the next question which is continuation of the previous question because this question i have no idea it.

Answer 6

continuation of problem 1 above:
a) Evaluate the probability distribution in problem 4, that is P(x│10,4,5) , for all meaningful values of x,
b) Plot these values on a coordinate system and show the probability distribution diagram.
c) For what value of x is the probability maximum? What does this imply?

Answer 7

Just finish out this table which you've already started