Answer:
9
Step-by-step explanation:
Use PEMDAS (Parenthesis, exponent, multiplication, devision, addition, subtraction)
So....
7 + 2 .... Simplified ( 10/5 =2)
9 ..... Added
Hope this helps!
Answer:
84
Step-by-step explanation:
f(1)=4^1 - 1 = 3
f(4) = 4^4 - 1 = 255
rate of change = 
(255 - 3) / (4 - 1) = 252 / 3 = 84
Answer:
The correct option is D. No, because a random sample from all customers of the shopping mall was not selected
Step-by-step explanation:
In statistics, Bias can be described as a term which depicts error if a sample is not taken evenly or it depicts errors taken from an unjust sampling.
In statistics, sampling bias means the errors which occur if one part of the population is favoured more then the rest of the populations. In this kind of bias, the individuals for experimentation are not chosen randomly.
As the customer satisfaction survey was distributed in only one of the gates hence, it does not give a generalized result and the result is biased.
Answer:
She subtracted the two 10x's where instead you're supposed to add them together.
Step-by-step explanation:
Answer:
bottom left :)
Step-by-step explanation:
