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Lesechka [4]
3 years ago
14

Please please help .. Really need answer asap please and thank you

Mathematics
1 answer:
natta225 [31]3 years ago
6 0
A is the answer I hope e2020 is going good for you 
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Professor York randomly surveyed 240 students at Oxnard University and found that 150 of the students surveyed watch more than 1
BaLLatris [955]

Answer:

1727 students

Step-by-step explanation:

Here we have the formula for sample size given as

n = \frac{p(1-p)z^2}{ME^2}

Where:

p = Mean

ME = Margin of error = 3

z = z score

Therefore, we have

p = 150/240 = 0.625

z  at 99 % = 2.575

ME = \pm3%

Therefore n = \frac{0.625(1-0.625)2.575^2}{0.03^2} = 1726.73

The number of students Professor York have to sample to estimate the proportion of all Oxnard University students who watch more than 10 hours of television each week within ±3 percent with 99 percent confidence = 1727 students.

5 0
3 years ago
What is negative 7/10 minus 2/5
Dmitriy789 [7]

The answer you are looking for is -11/10 or - 1 1/10.

To find this answer you must first make the denominators the same. To do this, multiply 2/5 by 2/2 to get 4/10. Finally, subtract the two fractions, keeping in mind the denominators stay the same. -7/10 - 4/10 = -11/10 or - 1 1/10.

I hope this helps!

4 0
3 years ago
If AB =CD, CD = 9in, BC = 5x, and AD = 53 in. , find x.
Inessa05 [86]

Answer:

Step-by-step explanation:

U right it’s not any of them and if u single I’m here

3 0
3 years ago
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The equation of the model is y = 0.08x<br><br> What does 0.08 mean in terms of LEGO prices
Ket [755]

Answer:

It should be cents

Step-by-step explanation:

6 0
3 years ago
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When the new book Units of Fire was released, Jonathan decided to read it in one sitting for his book report. He started at 11:0
aivan3 [116]
9hours x 60minutes = 540 minutes
(Presuming he actually sat and read the whole time)
4 0
3 years ago
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