Answer:
The confidence interval for a population mean proportion mean should be constructed because the variable of interest is time to complete the round, which is a quantitative variable.
Step-by-step explanation:
A researcher with a golf association obtained a random sample of 25 rounds of golf on a Saturday morning and recorded the time it took to complete the round.
Time is the number of hours, so it is mean, and not proportion.
Variable of interest is time to complete the round, and since it is measured in hours it is a quantitative variable.
The answer is:
The confidence interval for a population mean proportion mean should be constructed because the variable of interest is time to complete the round, which is a quantitative variable.
No.
This is almost a perfect square trinomial, but it is not.
We can verify this by looking at the first two terms.
With only x^2 + 20x, we could complete the square to make this a perfect square trinomial by performing the following steps:
<em><u>Divide the middle term by 2.</u></em>
20 / 2 = 10
<em><u>Square the quotient. </u></em>
10^2 = 100.
<em><u>Add 100 to both sides.</u></em>
x^2 + 20x + 100 = 100
As the provided trinomial is x^2 + 20x - 100, it is not a perfect square trinomial.
Answer:
25°
Step-by-step explanation:
51+x+14=90°
x+65=90°
x=90-65
x=25°
