Answer:
b = 2
Step-by-step explanation:
In order to find the value of b, we have to isolate b on one side of equation first
So,
Multiplying 2 with b-1
Adding 2 on both sides
Dividing by 5 on both sides
So the value of b is 2 ..
Answer:
CI = 21 ± 0.365
Step-by-step explanation:
The confidence interval is:
CI = x ± SE * CV
where x is the sample mean, SE is the standard error, and CV is the critical value (either t score or z score).
Here, x = 21.
The standard error for a sample mean is:
SE = σ / √n
SE = 3.2 / √510
SE = 0.142
The critical value is looked up in a table or found with a calculator. But first, we must find the alpha level and the critical probability.
α = 1 - 0.99 = 0.01
p* = 1 - (α/2) = 1 - (0.01/2) = 0.995
Using a calculator or a z-score table:
P(x<z) = 0.995
z = 2.576
Therefore:
CI = 21 ± 0.142 × 2.576
CI = 21 ± 0.365
Round as needed.
You need an answer to get x. like it needs to be
10x+44=100 or something in order to find x
Answer:
1. x=7
2.x=6
3.x= -1/2
4.x=3
5.x=-18
6.x= -8/5
7. x=60
8. x=-3
9. x=3
10. x=0
Step-by-step explanation:
did them as fast i could
This is not a terminating decimal because 70/800 can be 0.0875.
~JZ
