Questions 1-6: Let X and Y be independent random variables with means mu subscript X equals 9.5 and mu subscript Y equals 6.8, a
nd standard deviations sigma subscript X equals 0.4 and sigma subscript Y equals 0.1.What is E(X + Y )?Find var(X + Y ) and sd(X + Y ).
1 answer:
Answer:
B
Step-by-step explanation:
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x=25/64
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by simple substitution
n/5 = -1/5
5n = -5
<u>n = -1</u>
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