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PolarNik [594]
3 years ago
9

Please help me, i dont understand ​

Mathematics
1 answer:
Kitty [74]3 years ago
5 0

Answer:

OK so we can see that when x increases y does too. The answer is C

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We want to determine if the probability that a student enrolled in an accelerated math pathway is independent of whether the stu
Molodets [167]

Answer:

The correct option is (c).

Step-by-step explanation:

The complete question is:

The data for the student enrollment at a college in Southern California is:

                    Traditional          Accelerated            Total

                  Math-pathway     Math-pathway

Female              1244                       116                   1360

Male                  1054                       54                    1108

Total                  2298                     170                  2468

We want to determine if the probability that a student enrolled in an accelerated math pathway is independent of whether the student is female. Which of the following pairs of probabilities is not a useful comparison?

a. 1360/2468 and 116/170

b. 170/2468 and 116/1360

c. 1360/2468 and 170/2468

Solution:

If two events <em>A</em> and <em>B</em> are independent then:

P(A|B)=P(A)\\\\\&\\\\P(B|A)=P(B)

In this case we need to determine whether a student enrolled in an accelerated math pathway is independent of the student being a female.

Consider the following probabilities:

P (F|A) = \farc{116}{170}\\\\P(A|F)=\frac{116}{1360}\\\\P(A)=\frac{170}{2468}\\\\P(F)=\frac{1360}{2468}

If the two events are independent then:

P (F|A) = P(F)

&

P (A|F) = P (A)

But what would not be a valid comparison is:

P (A) = P(F)

Thus, the correct option is (c).

4 0
3 years ago
What is this fraction as a decimal?
tiny-mole [99]
0.4444444444444
is the answer for your question it repeats so your gonna want to put a bar notation.
8 0
3 years ago
Math question down below
mezya [45]

y=1 is the answer, there is no slope, so the formula y=mx+b turns into y=b, since 1 is the intercept 1 is b.

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3 years ago
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(-3)+(-5)+9 i will give brainllest
Mila [183]
(-3) + (-5) + 9

(-3) + (-5) = -8

-8 + 9

= 1
6 0
2 years ago
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Easy question right here!
Bad White [126]
12 glad I could help!
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3 years ago
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