Mathematics, 19.12.2019 06:31 100113801
Abox contains three cards, labeled 1, 2, and 3. two cards are chosen at random, with the first card being replaced before the second card is drawn. let x represent the number on the first card, and let y represent the number on the second card.
a. find the joint probability mass function of x and y.
b. find the marginal probability mass functions px(x) and py(y).
c. find µx and µy.
d. find µxy.
e. find cov(x, y).
Answers: 1
Mathematics, 21.06.2019 18:00
Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).
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Mathematics, 21.06.2019 22:00
Which two undefined geometric terms always describe figures with no beginning or end?
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Mathematics, 21.06.2019 23:30
The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x
Answers: 1
Abox contains three cards, labeled 1, 2, and 3. two cards are chosen at random, with the first card...
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