Answer:
32 cents
Step-by-step explanation:
3.84 ÷ 12 = 0.32 so 32 cents
X^3+3x^2-18x-3x^2-9x+54
————-
Final answer=
X^3-27x+54
I hope you understand my explanation and best of wishes!!
Answer:
c
Step-by-step explanation:
Answer:
The 95% confidence interval for the population variance is (8.80, 32.45).
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for the population variance is given as follows:

It is provided that:
<em>n</em> = 20
<em>s</em> = 3.9
Confidence level = 95%
⇒ <em>α</em> = 0.05
Compute the critical values of Chi-square:

*Use a Chi-square table.
Compute the 95% confidence interval for the population variance as follows:


Thus, the 95% confidence interval for the population variance is (8.80, 32.45).