Distribution method
(2x+6)(2x-6)
=4x^2-12x+12x-36
=4x^2-36
Answer:
he is jackies cousin
Step-by-step explanation:
Answer:
Option D, i.e., -0.7.
Step-by-step explanation:
Correlation describes the relation between two variables. It is defined by r and the value of correlation lies in the interval [-1,1].
If r=1, it represents strong positive correlation between two variables.
If r=0, it represents no correlation between two variables.
If r=-1, it represents strong negative correlation between two variables.
It is given that the value of a car decreases with age. The value of one variable decreases if the value of another variable increases. It means, the given problem has negative correlation.
If the data points lie about a straight negative line then coefficient is -1.
Since, the data set is not given, so the it represents moderate negative correlation, i.e, r=-0.7.
Therefore, the correct option is D.
Answer:
1 The number of people who bought the book. A best-seller list from the 1990s
2 The entire US. List of new cars bought between the given time points
3 The poplulation of North America that`s teachers. A Random sample of teachers incomes from different places inside North America.
4 A group of Tasmanian Devils. A few Tasmanian devils in a controlled environment
Hope this helps
