Answer:
$0.558
Step-by-step explanation:
The expected value is the sum of the value of each outcome times the chance that it happens. In this case, there are two outcomes:
- Win $31 million
- Win $0
Then our expected value can be calculated as:

Answer:
32/225 ≈ 0.1422
Step-by-step explanation:
If you consider "3-digit" numbers to be between 100 and 999, inclusive, there are 128 such numbers divisible by 7. The probability of choosing one at random is ...
128/900 = 32/225 = 0.1422...(repeating)
__
If you consider all non-negative integers less than 1000 to be "3-digit numbers," then the probability is ...
142/1000 = 0.142 (exactly)
Answer:
20x+68
Step-by-step explanation:
Answer:
Hey there!
3n-2=2n
n-2=0
n=2
Let me know if this helps :)
Answer:
W = 7
Step-by-step explanation:
1) Simplify 21/42 into 1/2
w/ 14 = 1/2
2) Multiply both sides by 14.
W = 1/2 · 14
3) Simplify
W = 14/29
4) Simplify (again)
W = 7