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3 years ago

5

I need help quick! please!

1 answer:

den301095 [7]3 years ago

3 0

Answer: the probability that the number x of correct answers is fewer than 4 is 0.61

Step-by-step explanation:

Let x be a random variable representing the answers to the SAT questions. This is a binomial distribution since the outcomes are two ways. It is either the answer is correct or incorrect. Also, the probability of success or failure is constant for each trial. The probability of success, p = 0.35

The probability of failure, q would be 1 - p = 1 - 0.35 = 0.65

We want to determine P(x < 4)

n = number of trial = 9

x = 4

From the binomial distribution calculator,

P(x < 4) = 0.61

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2 years ago

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belka [17]

Given:

The expression is:

$(6m^5+3-m^3-4m)-(-m^5+2m^3-4m+6)$

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The resulting polynomial in standard form.

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Rewrite terms that are subtracted as addition of the opposite.

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Group like terms.

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Combine like terms.

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