A researcher at a company plans to run some trials and wants to randomly select 763 people from the general population. The researcher wants to know the probability that the percentage of smokers in their selection is at least 25%. Assume that the percentage of smokers in the general population is 30%. Use a BSM to find this probability.

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step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

1st part is 64,000,000

2nd part 500,000

step-by-step explanation: