Answer:
175
Step-by-step explanation:
The sample size n in<em> Simple Random Sampling</em> is given by
<em>
where z = 1.96 is the z-score associated with a 95% confidence level ans s the standard deviation.
</em>
Replacing values
So, there should be 175 chief executive officers in a sample if we want to estimate the population mean annual salary plus bonus with a margin of error of $100,000
Eight below zero would express the value -8, negative eight,
but not 8.
Answer:
(2) Real and equal (i.e., repeated roots), if D = 0.
Step-by-step explanation:
.In a quadratic equation ax2 + bx + c = 0, if discriminant is D= b2 - 4ac, then roots of the quadratic equation are
Real and equal (i.e., repeated roots), if D = 0.
If the D > b² - 4ac then it's real and distinct.
I think the best answer is 3 to 9 but thats not a answer so 3 to 6
