Answer:
Step-by-step explanation:
Given that:
population mean = 10
variance = 25 ; = = 5
sample size n = 28
The standard deviation of the sample mean:
=
= 0.95
To halve the standard deviation of the sample mean, the size of how large the sample will be can be computed as follows:
= 2
n = 4 × 28
n = 112
I’m sorry what subject is this I will still help u
The vertex of a quadratic equation is the minimum or maximum point of the equation. Find that, and you have the vertex. <span>To </span>find the x-intercept<span> of a given linear equation, plug in 0 for 'y' and solve for '</span>x'. To find<span> the y-</span>intercept, plug 0 in for 'x<span>' and solve for 'y'.</span>