Information provided:
Sample size, n = 30 students
P(Male), P(m) = 55% = 0.55
P(Female), P(f) = 45% = 0.45
Now,
Mean = nP(m) = 30*0.55 = 16.5 ≈ 17 students
Variance = (sd)^2 = nP(m)P(f) = 30*0.55*0.45 = 7.425 ≈ 8 students
The slope of the line is -2.5 and the y-intercept is 2. This shows that the Quantity B is greater that A
<h3>How to find the intercept of a line</h3>
The intercept is the point where the line intersects
Determine the slope of the graph using the coordinate points (0, 2) and (0.8, 0)
Slope = -2/0.8
Slope = -2.5
The slope of the line is -2.5 and the y-intercept is 2
This shows that the Quantity B is greater than A
Learn more on equation of a line here:brainly.com/question/13763238
First add like terms
53 = -14 + 7z
now add 14 to both sides
67 = 7z
divide both sides by 7
9.5714285 = z
i hope this helps!!
Johnny Sins is the answer