Answer:
C) Mean, Skewed.
Step-by-step explanation:
The mean is easily influenced by outliers in a distribution. So if a Distribution of scores is skewed, then it will mislead the readers. In a skew distribution, either positive or negative, the Median will turn to be the central value. Usually, the mean is used besides other statistical parameters.
In a Normal distribution, the mean is right in the middle, symmetrically dividing the "bell shape" curve. The Mean, in this case, coincides with the mode, and the Median.
On the other hand, the Median is way more trustable central tendency measure, more resistant to outliers. So in a Skewed distribution, a Median is preferred over the Mean and use alongside the Mode.
Answer: 15
Step-by-step explanation:
Given: The present ratio of students to teachers at a certain school is to . If the student enrollment were to increase by students and the number of teachers were to increase by , the ratio of students to teachers would then be to .
To Find: What is the present number of teachers.
Solution:
let the number of teachers in schools are
As the current ratio of students to teachers is to
Number of students in school are
Now,
If number of student enrollment and teachers were to increase by and respectively.
New number of students in school would be
New number of teacher in school would be
new ratio of students to teachers is
Hence the number of teachers in school is
3x+4xy=4
Factor our variable x
x(4y+3)=4
Divide both sides by 4y+3
x(4y+3)/4y+3= 4/4y+3
x= 4/4y+3
I hope that's help !
2-1/4
2/1=8/4 Multiply top and bottom by 4
8/4-1/4
7/4
1 3/4
Answer:
43
Step-by-step explanation:
Nearest multiple of 12 is 480
516 - 480 = 36
36/12=3
Hope this help