Hey there!☺
To solve, we will need to evaluate:
We're not done yet because we need to simplify 13673/20:
Hope this helps!☺
A perfect square trinomial is
(square of one term) + (square of another term) + (double the product of the two terms)
Answer:
12:13, 12 to 13
Step-by-step explanation:
Given that the mean is $9.5 and the standard deviation is $1.30, the standard error will be given by:
σ/√n
where
σ-standard deviation
n=sample size
thus, we shal have:
1.30/√20
=0.2906
Next we find the margin error
0.2906*2=0.581
thus the confidence interval will be:
(9.5+0.581, 9.5-0.581)
=(10.081,8.919)
Answer:
18.2%
Step-by-step explanation:
For decimals, just move the point two times to the right.
