Depends on how your teacher grades. Generally, that is not a very good grade. But it depends on the "curve" as to where the cutoff is for each letter grade.
There is no such thing as a skew plane - in isolation. It can only be skew with reference to something else.
No. Skew lines do not intersect
It's an 80% score. That's a D- unless a grading curve is used.
Skew lines never intersect. If two lines intersect, then they are known as "intersecting lines", not skew lines.
he was grading on a curve
Not assigning grades to specific scores.
If the results of the analysis show a normal curve, why would there appear to be a skew in the data.
Grading on a curve means that grading is done according to the scores students get on a given assignment or test, versus grading on a fixed scale of 90-100 being and A, 80-90 being a B, etc. (or whatever scale is being used). Grading on a curve is sometimes used by teachers when a whole class does poorly on a test. Here is an example: In a class of 5 students, the scores were 76, 76, 70, 65, and 53. In this case, the grades would be C, C, C, D, F. The teacher could grade on a curve and give the 76s an A, 70 a B, 65 a C, and 53 a D.
I think its he was grading on a curve
The main utility of a cumulative frequency curve is to show the distribution of the data points and its skew. It can be used to find the median, the upper and lower quartiles, and the range of the data.
All factors other than price will shift the demand curve. Price moves along the demand curve.
With a 10 point grading scale the results (of a test etc.) are given a value between 0 and 9 or 1 and 10. If the grading is "on a curve" than the distribution of the various grades is spread on a Gaussian normal distribution.
there is no factors
If kept to a normal grading scale (not a curve), the grade would be a D- or F.
They can be, and are, "skew". If they are not lines, they cannot be "skew lines".
6 wrong out of 30 leaves 24 correct out of 30. Divide 24 by 30 to get 80%. 80% is usually a B or a B-, unless grading is on a curve. If it is on a curve, then it is impossible for me to say without knowing what the curve is.