Answer: a) 0.8413, b) 0.9987.
Step-by-step explanation:
Since we have given that
Mean = 3 pounds
Standard deviation = 0.25 pounds
n = 28 bricks
So, (a) What is the probability that all the bricks in the sample exceed 2.75 pounds?

b) What is the probability that the heaviest brick in the sample exceeds 3.75 pounds?

Hence, a) 0.8413, b) 0.9987.
Answer:
3x4^3/34
3×64/34=192/34=96/17 or 5.64
8 x 5 = 40
40 x 18 = 720
Hope this helps!
Answer:
1/3
Step-by-step explanation:
5 over 15
divide both by 5 to simplify 1 over 3
Answer:
x=1
Step-by-step explanation:
0=4x-4
-4=4x
x=1
hope this helps:)