Answer:
correct option is A. statistic
Step-by-step explanation:
given data
sample = 30
batteries = AAA
average lifetime = 1500 hours
to find out
find average lifetime with sample battery what is this called
solution
we know that sample mean that is
average of sample is called sample mean and is statistic
so here 30 sample is used
and here statistic is use to calculate the population parameter
so we can say that correct option is A. statistic
Answer:
Step-by-step explanation:
The expression is for the interior angle of the hexagon; one interior angle is equal to 
.
Since an interior angle of a hexagon measures 120°, we have the equality
.
Now it is just a matter of solving for 
Answer:
2/5
Step-by-step explanation:
5+4+1 = 10. If you have 4 nickels out of 10 coins, it means there is a 4/10 chance of selecting one, but to simplify, 2 is the greatest common factor, so you would divide each number.
4/2 = 2.
10/2 = 5.
The answer is 2/5.
Answer:
6
Step-by-step explanation:
Fid the difference in the y-coordinates of any two points. This is the rise.
Then find the difference in the corresponding x-coordinates of the same points. This is the run.
slope = rise/run
Let's use x = 12, x = 15, and y = -4, y = 14.
rise = -4 - 14 = -18
run = 12 - 15 = -3
slope = rise/run = -18/(-3) = 6
Answer: slope = 6
