Answer:
a) negative correlation b) Diagram C (I think) c) Diagram b
Step-by-step explanation:
a) Negative= line going dow
Positive= line going up
no correlation= no line
b) the dots are to close to each other which mean it has a string correlation.
c)Its no correlation, so line should not be drawn
First fold = .02
2nd fold = .04
3rd fold = .08
4th fold = .16
5th fold = .32
6th fold = .64 cm
25 students.....10 of which passed...
percentage of students that passed : 10/25 = 0.4 = 40% <==
Answer: 
Step-by-step explanation:
The first step is to make the division of the fractions
and
. To do this, you can flip the fraction
over and multiply the numerators and the denominators of the fractions. Then:

Reduce the fraction
:

Now you can make the subtraction: in this case the Least Common Denominator (LCD) will be the multiplication of the denominators. Divide each denominator by the LCD and multiply this quotient by the corresponding numerator and then subtract the products. Therefore you get:
