Answer:
a)
b) SD(x) = 0.9986
Step-by-step explanation:
Given data:
Number of slots 38
slots for red ball 18
slots for black = 18
slots for green 2
outcomes Red Black or Green
Profit 1 -1
P(X) 18/38 20/38
Expected value of wining,

B) Standard deviation of winning SD(x)


SD(x) = 0.9986
AnswerdV/dt = 4·pi·(40)2·(-2)
Step-by-step explanation:
Answer:
12 windows
Step-by-step explanation:
Number of windows broken = 40% of 30

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Answer: 3
Step-by-step explanation: QPEX VERIFIED JUST DID IT