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kompoz [17]
3 years ago
5

PLease what is the answer!

Mathematics
2 answers:
lesantik [10]3 years ago
8 0

Answer:

74

Step-by-step explanation:

(80+96+81+89+64)÷5 = 84

Used the formula to get the average of a number. Hope this helps

Stella [2.4K]3 years ago
3 0
The minimum grade to get is 74.
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I need help ASAP! Can anyone please check my work?
STALIN [3.7K]

A = event the person got the class they wanted

B = event the person is on the honor roll

P(A) = (number who got the class they wanted)/(number total)

P(A) = 379/500

P(A) = 0.758

There's a 75.8% chance someone will get the class they want

Let's see if being on the honor roll changes the probability we just found

So we want to compute P(A | B). If it is equal to P(A), then being on the honor roll does not change P(A).

---------------

A and B = someone got the class they want and they're on the honor roll

P(A and B) = 64/500

P(A and B) = 0.128

P(B) = 144/500

P(B) = 0.288

P(A | B) = P(A and B)/P(B)

P(A | B) = 0.128/0.288

P(A | B) = 0.44 approximately

This is what you have shown in your steps. This means if we know the person is on the honor roll, then they have a 44% chance of getting the class they want.

Those on the honor roll are at a disadvantage to getting their requested class. Perhaps the thinking is that the honor roll students can handle harder or less popular teachers.

Regardless of motivations, being on the honor roll changes the probability of getting the class you want. So Alex is correct in thinking the honor roll students have a disadvantage. Everything would be fair if P(A | B) = P(A) showing that events A and B are independent. That is not the case here so the events are linked somehow.

8 0
3 years ago
Pls help me with these problems
andreyandreev [35.5K]

Answer:

Do u want the formulas or working

5 0
3 years ago
Read 2 more answers
Write in standard form <br><br><br>5.13 x 10₇<br><br>*please help me*
mafiozo [28]

In the standard form, the number 7 here should be an exponent not a sub text.

Answer: 5.13 x 10^(7).

Done!

4 0
3 years ago
Need help, please need help
Montano1993 [528]

Answer:

Step-by-step explanation:

thats your problem learn how to pay attention lol

4 0
3 years ago
Which is the graph of f(x) = StartRoot x EndRoot?
arsen [322]

Answer:

B

Step-by-step explanation:

On a coordinate plane, an exponential function increases in

quadrant 3 into quadrant 4 and approaches y = 0. It goes through

(negative 1, negative 2) and crosses the y-axis at (0, negative 0.25) ⇒ last answer

HOPE IT HELPS ....

4 0
3 years ago
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