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2 years ago

Solving inequalities( need help checking my answer)

Mathematics

2 answers:

Misha Larkins [42]2 years ago

8 0

Step 1. You need x isolated.
$x < 13+7$

<em>When you move a number from the left to right (and its addition or subtraction, the sign stays (< ≤ > and ≥ is signs).
</em><em>x<20 or in words, x is less than 20, and cannot be 20.</em>

rusak2 [61]2 years ago

6 0

Answer:

x < 20

Any number less than 20 is a solution

Step-by-step explanation:

x-7 < 13

The first step to solve this inequality is to add 7 to each side

x-7+7 < 13+7

x < 20

Any number less than 20 is a solution

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1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

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The probability in favor of the regulation based on the recent survey is:

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Let X the random variable of interest "Number of favor respondents about the regulation", on this case we now that:

$X \sim Binom(n=6, p=0.68)$

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Where (nCx) means combinatory and it's given by this formula:

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And we want to find this probability:

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