Answer:
Applying the binomial theorem

Here we have x = -
, n = 8,
=> 4th term (k = 3) would be:

Hope this helps!
:)
Answer:
they are equal
Step-by-step explanation:
f(x) means the same thing as y.
42600-25800=16800
16800/15=1120
42600*x=100*1120
x=112000/42600=2.62%
Answer:
Yes, I can reject the null hypothesis with 95% confidence.
Step-by-step explanation:
Critical value t(63) = 1.99
p-value = 0.03
Confidence level (C) = 95% = 0.95
Significance level = 1 - C = 1 - 0.95 = 0.05
Conclusion:
Reject the null hypothesis because the p-value 0.03 is less than the significance level 0.05.