Find the Expected Value

question 39

Multiple Choice

Find the expected value.
-A fair coin is tossed three times,and a player wins $3 if 3 tails occur,wins $2 if 2 tails occur and loses $3 if no tails occur.If one tail occurs,no one wins.What is the expected value of the games?

• A)$2.00
• B)-$3.00
• C)$3.00
• D)$0.75

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Definitions:

Sleep/Wake Cycle

The circadian rhythm that regulates patterns of sleepiness and wakefulness over a 24-hour period.

Sleep Spindles

Bursts of brain activity observable in an EEG that occur during Stage 2 of sleep, thought to play a role in memory consolidation and learning.

EEG Activity

The recording of electrical activity along the scalp produced by the firing of neurons within the brain, often used in neurological diagnosis.

Slowest Brain Waves

Delta waves, which are associated with the deepest stages of sleep and unconsciousness.