7. 1. When you takes one marble at
random then how many opportunities
are being picked green marbles?
8. 1. When you takes one marble at
random then how many opportunities
are being picked green marbles?
2. When you took one marble at
random what is the probability that a
blue marble is drawn?
9. 1. When you takes one marble at
random then how many opportunities
are being picked green marbles?
2. When you took one marble at
random what is the probability that a
blue marble is drawn?
3. When you take one marble at
random then what is the probability of
marbles drawn are green or blue? .
11. With a simple understanding. There are 5
marbles then there are 5 choices take
marbles. Among the five marbles there is
only 1 green marbles then there is only one
green choice.
12. So the chances of green chosen is 1
possibility out of 5 possible options. Or we
can write:
1 20
Opportunity (green) = 5 = 100 = 20%
13. 1
What is the meaning of odds 5 this?????
The simple meaning is that if you took 1
marbles so it is unlikely you will get a green
marbles. But if you took 1 marbles 5 times
almost certain you will succeed in green.
1
5 x5 = 1
15. With a common understanding, there are 4
blue marbles marbles out of 5 total. So
chances are the blue you got 4 choice of 5
options possible. We can write,
Opportunity (blue) = 4 = 100 = 80%
5
80
17. True. We can guess. Opportunity 4 is almost
5
sure that you is almost certainly managed to
obtain a blue color. When you took the
marbles repeat 5 times then you will be able
to obtain blue green 4 times and only one
time.
19. Of course you certainly managed to take the
marbles are green or blue. There are 5
marbles are green or blue color. So you has 5
choices of 5 possible options. your conclusion
certainly succeeded.
20. In the theory of chances, chances are
definitely going have a chance = 1 = 100%.
21. In fact, the play super marble, we sometimes
take the marbles directly 2 points or 3 points
according to the results of dice throws us.
24. In a basket there are 7 red balls, 5 blue balls
and the black 8 ball. If 3 balls drawn
randomly drawn ball on condition returned to
the basket, what is the probability that the
balls are drawn successively red, black and
blue?
25. Because the decision is with replacement,
then the number of balls in the basket for
each decision is fixed, namely: 7 +5 +8 =
20.
26. So the odds of drawing a ball with a
sequence of red, black, blue is the product of
three chance of drawing the ball on every
decision, namely:
7 8 5 7
P = 20 x 20 x 20 = 200
27. Case : Taking the ball one by one without
replacement.
28. In a box there are 5 red balls, six green balls
and 4 yellow balls. If 3 balls drawn at
random without replacement, what is the
probability that the ball drawn in a row is
red, green, red?
29. Since taking the ball without replacement,
then the number of balls in the box on every
decision will be different. Chances are the
multiplication of each opportunity on every
decision. Can be calculated by:
5 6 4 4
P = 15 x 14 x 13 = 19
