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2 years ago

I'm not understanding which statement is correct, to me they all look wrong

Mathematics

2 answers:

alisha [4.7K]2 years ago

8 0

The answer is C.
Explanation:
The higher the negative number the lower the value in it so that means that the -5.4 is less than -3.2
I hope that clears this up a little and it’s not as confusing.

neonofarm [45]2 years ago

4 0

Answer:

it is the third option because -3.2 is greater than -5.4

Step-by-step explanation:

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Does 4/3 terminate or repeat?

Mars2501 [29]

Step-by-step explanation:

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3 years ago

A test consists of 10 true or false questions. To pass the test a student must answer at least eight questions correctly. If the

forsale [732]

<h3>The probability of student passing the quiz with at least 50% of the questions correct is 0.05457.</h3>

Step-by-step explanation:

Here, the total number of T/F question = 10

The minimum answers needed correctly answered = 8

So, student needs to answer at least 8 questions correctly.

Here, the possibility of answering a question correctly = $(\frac{1}{2})$ = p = 0.5

Also, the possibility of answering a question wrong = $(\frac{1}{2})$ = q = 0.5

Now, to pass he needs to answer 8 or more ( 8 , 9 or 10) answers correctly.

P(answering 8 correct answer) = $^{10}C_8(p)^8(q)^2 = ^{10}C_8(0.5)^8(0.5)^2 = 0.0439$

P(answering 9 correct answer) = $^{10}C_9(p)^9(q)^1 = ^{10}C_9(0.5)^9(0.5)^1 = 0.0097$

P(answering 10 correct answer) = $^{10}C_{10}(p)^{10}(q)^0 = ^{10}C_{10}(0.5)^{10}(0.5)^0 = 0.00097$

So, the total Probability = P(8) + P(9) + P(10)

= (0.0439) + (0.0097) + (0.00097)

= 0.05457

Hence, the probability that the student passes the quiz with at least 8 of the questions correct is 0.05457.

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago