3 years ago

Please help!

1 answer:

5 0

I'm doing interval notations right now in pre-calculus, this how this notation should be written, (-∞,-2] or [4,∞), but this, (x ≤ -2] or [4 ≤ x), means the same thing. closed circle gets a bracket and an open circle gets a parenthesis, infinity always gets a parentheses because it is not a number. hope this helps

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Two students taking a multiple choice exam with 20 questions and four choices for each question have the same incorrect answer o

MrRa [10]

Answer:

The Possible model is binomial distribution model.

Step-by-step explanation:

The argument that both students cheated in the exam can be proved by a hypothesis that both the students got the same answers incorrectly.

The same incorrect answers prove that both students have cheated on the test.

Therefore the sample of incorrect answers is, n = 8

Thus, the success probability, P = 0.25

Since the given condition has only two outcomes that are choosing the same answer or not choosing the same answer. Thus, this can be solved by the binomial distribution model.

So, binomial distribution with n = 8 and p = 0 .25.

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3 years ago

Canada has a population that is about 1/10 as large as the United States. If Canada's population is about 32,000,000, about how

Nezavi [6.7K]

Canada's populations times 10 and you will get the answer.

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4 years ago

Someone please help even if u just answer one of the questions :)

Advocard [28]

1. E
2(a+2b+3c)= 2a+4b+6c you will distribute the 2 into a, b, and c which you will multiply.
2 x a = 2a
2 x 2b = 4b
2 x 3c = 6c

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