It’s the set of all possible outcomes
Answer:16x-8y
Step-by-step explanation:
Add all the sides (x's & y's)
Standard deviation = √(n * p * q)
You are given n and p
q = 1 - p
q = 1 -0.2 = 0.8
Standard deviation = √(21 * 0.2 * 0.8)
=√3.36 = 1.83
The answer is A.
It will take him 16 hours because 25 is 1/4 of 100% so 4 times 4 is 16. So 16 is your answer :)
.45 is between 0.4 and 0.5