1. Using the sample data provided, calculate the standard deviation with and without the correction for the estimate of the population. Explain why the value changes and why the calculation for the sample as an estimate uses a correction that results in the inflation of the standard deviation.

Data: 5, 11, 9, 3.5, 7.5, 6, 5.

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.

answer

step-by-step explanation:

the equation of the parabola is y2=12x

explanation:

the vertex is midway between the focus ad the directrix

so, the vertex is (0,0)

let p=(x,y) be a point on the parabola.

the distance of p from the directrix is equal to the distance from the focus.

x+3=√(x−3)2+(y−0)2

(x+3)2=(x−3)2+y2

x2+6x+9=x2−6x+9+y2

y2=12x

graph{y^2=12x [-10, 10, -5, 5]}