Pls help me solve this
1 answer:
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The expectation value is given by:
In this case we just have two options, each with probability 1/2, and the values of x are 2 and 9; then we have:
Therefore, the expectation is $6.5
The exact value of sin 5π/4 is 0. 0677
<h3>How to find the value</h3>
It is important to note that π = 3. 142
Let's find sin 5π
Substitute the value
sin 5π = sin (5 × 3. 142) = sin 15. 71
=
Find the sine of the number
=
=
Thus, the exact value of sin 5π/4 is 0. 0677
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