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poizon [28]
3 years ago
12

Need help with number 3

Mathematics
2 answers:
Oxana [17]3 years ago
8 0
Class C because it has the most amount of money and more students than the others
Stells [14]3 years ago
4 0
Class thee answer is class cccc ok
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If you draw a card with a value of three or less from a standard deck of cards, I will pay you $43. If not, you pay me $11. (Ace
valina [46]

If W is a random variable representing your winnings from playing the game, then it has support

W=\begin{cases}43&\text{if you draw something with value at most 3}\\-11&\text{otherwise}\end{cases}

There are 52 cards in the deck. Only the 1s, 2s, and 3s fulfill the first condition, so there are 12 ways in which you can win $43. So W has PMF

P(W=w)=\begin{cases}\frac{12}{52}=\frac3{13}&\text{for }w=43\\1-\frac{12}{52}=\frac{10}{13}&\text{for }w=-11\\0&\text{otherwise}\end{cases}

You can expect to win

E[W]=\displaystyle\sum_ww\,P(W=w)=\frac{43\cdot3}{13}-\frac{11\cdot10}{13}=\boxed{\frac{19}{13}}

or about $1.46 per game.

3 0
3 years ago
Dakota earned ?$4.50 in interest in Account A and ?$18.00 in interest in Account B after 18 months. If the simple interest rate
jeka94

Answer:

6

Step-by-step explanation:


7 0
3 years ago
Juan's income y consists of at least $37,500 salary plus 5% commission on all of his sales x. which inequality represents juan's
belka [17]
<span>Answer: 3 + 4 + 4 + 2s = 172121391827 f + r + f + d+ = +_+_+_71230973210123 f - 4 = 9 s - 222 = 9009 r + 555 = 1231212312123</span>
5 0
3 years ago
Read 2 more answers
Stan earns $12 per hour by working as an intern at a law firm. How much money does he earn in a week in which he works 28 hours?
torisob [31]

Answer:

D

Step-by-step explanation:

Stan works for 28 hours and gets paid $12 for each hour, so the amount of money he gets in total is $12*28 = $336.

8 0
2 years ago
How do you do this? I'll give brainliest, please help.
Dmitriy789 [7]

Answer:

Domain is all values of X or (-∞,∞)

Range is all the possible values of Y. Since it goes up to 3, and then it goes down, it's all values less than or equal to y, or (-∞,3] or y ≤ 3 (depending on how you need to enter the response.

Step-by-step explanation:

6 0
3 years ago
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