Consider the distribution of exam scores (graded from 0 to 100) for 86 students when 38 students got an a, 28 students got a b, and 20 students got a c. complete parts (a) through (d) below.
a. how many peaks would you expect for the distribution?

There is only 1 peak in this distribution.

Step-by-step explanation:

In  the distribution of exam scores (graded from 0 to 100) for 86 students 38 students got an A,  28 students got a B, and 20 students got a C.

Since, 38 > 28 > 20, we can expect only 1 peak in this distribution

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

sorry man i accidentally pressed yes my bad

step-by-step explanation: