your correct answers is 114
Answer:
washing away of the top most layer of the Earth surface
Answer: e) Elena will use test data to validate her model
Explanation:
Test data is a computer program that will help Elena to verify the type of results to expect using some set of inputs.
Answer:
Thus, expected value of playing = $2.8 - $2 = $0.8
Explanation:
Cost of playing = $2
Expected return
10% chance to win $1 = $1
10% = $0.1
25% chance to win back $2 = $2
25% = $0.5
50% chance to win $5 = $5
50% = $2.5
15% chance to lose $2 (being cost) = $2
15% = ($0.3)
= $0.1 + $0.5 + $2.5 - $0.3 = $2.8
Now for this we have to pay fixed cost $2
Thus, expected value of playing = $2.8 - $2 = $0.8