Answer:
D.]
Step-by-step explanation:
We will find the standard deviation and variance:
Variance= E
-[![[E(x)]^{2}](https://tex.z-dn.net/?f=%5BE%28x%29%5D%5E%7B2%7D)
E[x] = 3.462
E[{x}^2]= 31.86
Var(x)= 31.86-(3.462)^2 = 28.4
Standard deviation = 
= 
= 5.833 = 6(aproximately)
Therefore, the chances of winning are equal in each lane.
Over 50 volunteers has helped over 15 hours
15 = 0.25x
1500 = 25x
60 = x
The original price was $60.
32⁴
32 × 32 × 32 × 32
1,024 × 32 × 32
32,768 × 32
1,048,576
The answer is 1,048,576
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