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dybincka [34]
3 years ago
9

I’m on a test so I need help

Mathematics
1 answer:
sladkih [1.3K]3 years ago
4 0
The answer is 2 y2 -9
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Help me please !
scoray [572]
Marcus score is 13.7, the mean is 12.89, and the standard deviation is 1.95, so I’ll do ( 13.7 – 12.89)/ 1.95, Since Marcus' z-score is 0.415. The area to the left of the z-score is 65.9% so therefore Marcus did scored better than 65.9% of the students. So Marcus needs to score 98% better of all the other students in order for him to receive an actual certificate.
6 0
3 years ago
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"if n balls are distributed randomly into k urns, what is the probability that the last urn contains j balls?"
seraphim [82]

The answer relies on whether the balls are different or not. If they are not, which is almost certainly what is intended.


If they are, the perceptive is a bit different. Your expression gives the likelihood that a particular set of j balls goes into the last urn and the other n−j balls into the other urns. But there are (nj) different possible sets of j balls, and each of them the same probability of being the last insides of the last urn, so the total probability of completing up with exactly j balls in the last urn is if the balls are different.


See attached file for the answer.

3 0
3 years ago
In a function, an input can have more than one output. True Or False ??
Fudgin [204]
False. For every x in the function's domain, f(x) describes the one single output. 
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3 years ago
The private school enrollment of a city is 12.000. Enrollment is increasing at a rate of 4.5% annually. What would the
irakobra [83]

Answer:

28940.568

Step-by-step explanation:

3 0
2 years ago
There are 4 3/8 pounds of bricks in a bag. Each brick weighs 7/8 of a pound. How many bricks are in the bag?
goldfiish [28.3K]
Hello :) the answer to your question would be 5. There are 5 bricks in each bag. 35/8
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2 years ago
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