Answer:
Approximately
.
Step-by-step explanation:
The cards were drawn with replacement. Therefore, the probability of drawing a red card will be
at every one of the seven draws. The probability of not drawing a red card would be
.
One way to get three red cards out of the seven draws would be
. That corresponds to a probability of
.
However, there are many other ways to get three red cards during the seven draws. For example:
There are
such ways in total to choose three draws out of seven draws.
These ways are mutually-exclusive. Each of these ways has a probability of
. The probability for getting a red card on exactly three out of the seven draws would be:
.
Answer:
The quarter circle Is connect the triangle
it is Cut.
Step-by-step explanation:
Ihope makatulong
Pa follow
Answer:
Step-by-step explanation:
Given that we pick up three people at random.
We can ignore the leap year so we assume there are 365 days in a year.
Probability for a person to be born on a specific data is equally likely and hence equal to

Each person out of three persons is independent of the other.
Hence for the second person to have the same birthday would have equal probability.
X = No of persons to have common birthday is binomial with n =3 and p = 
a) the probability that the first two people share a birthday
= 
b) the probability that at least two people share a birthday
= 
X^2-14+5 I’m not sure though