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You toss a coin 10 times. Give all answers as decimals, to four decimal places. If...

You toss a coin 10 times.

Give all answers as decimals, to four decimal places. If the answer is exact, give an exact value, for example, if the answer is exactly 6, enter 6.

        1. What is the expected number (E[x]) of heads?  

        2. What is the standard deviation of the number of heads?  

       3. What is the probability of getting exactly 6 heads?      

       4. What is the probability of getting between 2 and 5 heads, inclusive?      

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