Answer:
y = 
+ 5
Step-by-step explanation:
So here we have to put it in y = mx + b form;
7x + 4y = 20
Subtract 7x from both sides;
4y = -7x + 20
Divide both sides by 4;
y = + 5
Answer:
1.067 would be the answer your looking for in this question.
Answer:
Option D is correct
Step-by-step explanation:
The options for the question is
a)cluster sample
b)convenience sample
c)simple random sample
d)stratified random sample
e)systematic random sample
Solution
The sampling here comprises of students from all the major of college. Here the major can be considered as "strata" of the educational institute. Out of these, strata or majors five students are selected on random basis.
This is a form of stratified random sample
Hence, option D is correct
20 has been added to the total of scores, so the new mean for the 20 scores will be 20/20 = 1 higher than it was.
The new population mean is 15+1 = 16.
It's the opposite side divided by the hypotenuse
