Plz asap using the frequency table below, find how many students received a score of 70 or better on a mathematics test. a.19 b.12** c.17 d.14 score interval frequency 50 – 59 [2] 60 – 69 [5] 70 – 79 [5] 80 – 89 [7] 90 – 99 [2]

Okay this one is pretty easy.

Here are the steps:
1. we know that 70 - 79 = 5 students 80 - 89 = 7 students 90 - 99 = 2 students. 
2. ADD
3. 5 + 7 + 2= 14 
4. ANSWER

A: D there are 14 students scored 70 and above! 
Hope this helped! (tell me if i'm wrong or right please!!!)
 

Ifound this on google “a skewed (non-symmetric) distribution is a distribution in which there is no such mirror-imaging. a "skewed right" distribution is one in which the tail is on the right side. a "skewed left" distribution is one in which the tail is on the left side. the above histogram is for a distribution that is skewed right.” i hope this you for what your looking for