Find the probability of obtaining 3 heads when flipping 4 coins
Answer:
Using trigonometric ratio:


From the given statement:
and sin < 0
⇒
lies in the 3rd quadrant.
then;

Using trigonometry identities:
Substitute the given values we have;

Since, sin < 0
⇒
now, find
:

Substitute the given values we have;

Therefore, the exact value of:
(a)

(b)

So the total number of students is 50, and you want to find 32/50. and that is equal to 64%
Answer:

Step-by-step explanation: