Answer:
You should divide (÷)
Step-by-step explanation:
4.80÷ 80/100
then u add them together and get ur answer
Answer:
The 95 % confidence interval for the mean is between 28.09 and 35.97.
Step-by-step explanation:
Mean of the sample:
30 values.
So we sum all the values and divide by 30.
The sum of all the values(43 + 52 + 18 + ... + 20 + 41) is 961.
961/30 = 32.03
Confidence interval:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so 
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 32.03 - 3.94 = 28.09
The upper end of the interval is the sample mean added to M. So it is 32.03 + 3.94 = 35.97
The 95 % confidence interval for the mean is between 28.09 and 35.97.
Answer:
Whatever this means.
Step-by-step explanation:
654. Present the degree in the form of a product:
1000;
g) ka; j) (m + 2)
6) 12
A) 60t:
3) aw; l) (a - 7;
B) 15.
i) x2; m) (x + yy.
Hope this helps with anyone......
IS IT THE EXACT EXPRESSION OR IS ANYTHING MISSING
Use pythagorean theorem;
a²+b²=c² where a and b are the legs and c is the hypotenuse of triangle
5²+b²=10²
b²=100-25
b²=75
b=√75
b=8.66 miles
Hope I helped :)