Answer:
6abx-3bx-4ay+2by
Step-by-step explanation:
Answer: A number times 5 plus 2
Step-by-step explanation:
<span>It costs $7.00 to play a straightforward game in which a dealer gives you one card from a deck of 52 cards. </span><span>
</span><span>
If the card is a heart, spade, or diamond, you lose. </span><span>
</span><span>
If the card is a club other than the queen of clubs, you win $11.50. </span><span>
</span><span>
If the card is the queen of clubs, you win $50.00. </span><span>
</span><span>
The random variable x represents your net gain from playing this game once, or your winnings minus the cost to play. What is the mean of x, rounded to the nearest penny?</span><span>
</span><span>
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Random "winnings"::.....-7.......4.50......43</span><span>
</span><span>
Probabilities::........ 39/52....12/52....1/52 </span><span>
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</span><span>
u(x) = [39*-7 + 12*4.5 + 43]/52 = -$3.38
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Answer:
Что за вопрос?
Step-by-step explanation:
