Answer:
a) 88% is a population characteristic.
Step-by-step explanation:
A population characteristic, also known as population parameter, describes a characteristic about the entire population of variables (usually numerically). Basically, it is a description (usually numerical) about a group of variables, obtained from the total population of such a variable.
WHILE
A statistic describes that same characteristic, only that it is obtained from a sample of variables taken from the population.
For the question above, a department notices that 88% of ALL their customers who use the store's credit plan pay their bills on time. It is evident that this is a population charasteristic, as it is obtained from examining the entire population of customers.
Hope this Helps!!!
Answer:
16z+12
Step-by-step explanation:
Let's simplify step-by-step.
4z+3+4z+3+4z+3+4z+3
Combine Like Terms:
=4z+3+4z+3+4z+3+4z+3
=(4z+4z+4z+4z)+(3+3+3+3)
=16z+12
Hope this helps!
It’s all about substitution, i think the answer is 2.
Answer:
x= 3 and x= -3
Step-by-step explanation:
x^2 -9 = 0
Factor x^2-9
(x+3)(x-3)
If x+3=0, then x= -3
If x-3=0, then x= 3
