Answer: 15 students in her second class.
Step-by-step explanation:
Let A, B, and C stand for the number of students in each class. See the attached table.
The column labelled "Students" is formed by assinging B to the second class and finding how the other two classes relate to B. Class A has twice as many students as class B, so A = 2B. Class C has 5 more students than B, so C = B+5.
The total students amount to 65, whcih is the sum of A, B, and C:
A + B + C = 65
Substitute the values of A and C into this equation:
A + B + C = 65
2B + B + (B+5) = 65
4B + 5 = 65
4B = 60
B = 16
Use B=16 and solve for the other two classes (dotted blue line).
<span>The mean is 3.25.
IT IS A NEGATIVE SKEW.
</span>
Why is it called negative skew? Because the long "tail" is on the negative side of the peak.
People sometimes say it is "skewed to the left" (the long tail is on the left hand side)
The mean is also on the left of the peak.
Suggestion:
Try to explain this more clearly.
Why you should try my suggestion:
Because it will help others so they understand what your question is.
My note:
Hoped I helped, and I would love to be marked as Brainliest! Thanks!
I'm a bit confused.. Is this supposed to be asking a question about Combining Like Terms or is it like, telling what it is or something. I'm just clueless lol, It's good if your just telling people what it is if anyone needs help with it though! Not many people do that!