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GarryVolchara [31]
3 years ago
15

Is the following always, sometimes or never true . 2(8x-4)-2x≤14x+12

Mathematics
1 answer:
yarga [219]3 years ago
4 0
<span>In this equation, 2(8x-4)-2x = 14x+12 then, solving this we get, 16 x - 8 -2x = 14x +12 or -8-12 = -4x or -20 = -4x or x = 5. Thus, this equation hold true, When we use the equality sign instead of the question mark.</span>
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3 years ago
In a class of 25 students, 15 of them have a driver's license. If ten students are randomly selected, what is the expected numbe
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Answer:

<em>Expected number of students  would have a driver's license = 6</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given data In a class of 25 students, 15 of them have a driver's license

The sample proportion

                                p = \frac{x}{n} = \frac{15}{25} = 0.6

Let 'X' be the binomial distribution

Given sample size 'n' = 10

<em>mean of the binomial distribution or expected number of students  would have a driver's license</em>

                                 μ = n p

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<em>Expected number of students  would have a driver's license = 6</em>

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