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Steps are on paper
Steps are on paper
5. Max and Evie are comparing the number of ride tickets they have for an amusement park. They notice that Evie has 4 less than
three times the number of tickets that Max has. If the number of tickets Max has is represented by n, then which of the following represents the combined number of tickets Max and Evie have in terms of n?
1 answer:
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The Bernoulli distribution is a distribution whose random variable can only take 0 or 1
- The value of E(x2) is p
- The value of V(x) is p(1 - p)
- The value of E(x79) is p
The distribution is given as:
p(0) = 1 - p
p(1) = p
The expected value of x2, E(x2) is calculated as:
So, we have:
Evaluate the exponents
Multiply
Add
Hence, the value of E(x2) is p
<h3>How to compute V(x)</h3>This is calculated as:
Start by calculating E(x) using:
So, we have:
Recall that:
So, we have:
Factor out p
Hence, the value of V(x) is p(1 - p)
<h3>How to compute E(x79)</h3>The expected value of x79, E(x79) is calculated as:
So, we have:
Evaluate the exponents
Multiply
Add
Hence, the value of E(x79) is p
Read more about probability distribution at:
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