$4.30
Do ten times $3.57 and subtract it from $40
The correct answer is A hope this helps
Answer:
A . About 95% of all random samples of 50 students from this population would result in a 95% confidence interval that covered the population mean number of hours of sleep per day.
Step-by-step explanation:
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
In this question:
95% CI from a sample of 50 students is (6.73, 7.67).
This means that we are 95% sure that the population mean is in this interval, that is, about 95% samples of 50 would contain the population mean, which is given by option A.
Answer:
6.25
Step-by-step explanation:
I'm going to build it from the bottom up:
(x+0)(x-1)(x-2)=y
x(x-1)(x-2)=y
x[(x^2) -3x+2]=y
(x^3) -(3x^2)+2x=y
Sorry! It's hard to show equations using a keyboard!
