Help asap please !! math
1 answer:
You might be interested in
Answer:
hope it will be helpful to you
Answer:
OPTION B
Step-by-step explanation:
Geometric series :
where is the first term of the series and
is common difference.
A geometric series is convergent if |r| < 1.
It is divergent otherwise.
Since the first term of the series is a and the second term is ar, the ration of second term and first term, = r.
OPTION A:
.
Here, and
r > 1. So, this series is divergent.
OPTION B:
a = 1; ar = .
.
Since, r < 1, we can say that the series is convergent.
OPTION C:
We can easily see that |r| =4. So, it is not convergent.
OPTION D:
Again |r| = 2. So, the series should be divergent.
Answer:
(96.91, 101.09)
Step-by-step explanation:
To calculate the interval, you require the Z value at 95% confidence interval. The Z value is 1.96. The formula to calculate the confidence interval:
Where X is the mean and s is the standard deviation and x the sample size:
The interval is (96.91, 101.09)