Answer:
0.4494
Step-by-step explanation:
Given :
marks number of students
20-29 8
30-39 12
40-49 20
50-59 7
60-69 3
The range Coefficient is obtained thus :
Range Coefficient = (Xm - Xl) / (Xm + Xl)
Where ;
Xm = Mid value of highest class = (60+69)/2 = 64.5
Xl = Mid value of lowest class = (20+29)/2 = 24.5
Range Coefficient = (64.5 - 24.5) / (64.5 + 24.5)
Range Coefficient = 40 / 89 = 0.4494
Hello there!
0.8 is not irrational
If a number can be written with a perfect fraction, it is rational
Hope I helped!
Let me know if you need anything else!
~ Zoe <span />
X equals 4
2+8+9+7+6
=32
6*6
=36
36-32
=4
-77 is the correct answer. Hope this helped. Comment if you would like a more detailed answer.
+60 or -60
Step-by-step explanation:
positive or negative square root 3600
positive square root 3600 is +60
negative square root 3600 is -60
If possible, pls give brainliest. tks
