Question

find the mean by step deviation method 0-10 10-20 20-30 30-40 40-50 frequency 12 16 6 7 9​

Answer 1

Answer:

given  

PERIMETER = 4 pie r

2 pie R = 4 pie r  

so R = 4pie r ÷ 2 pie  

R = 2r  

so AREA OF CIRCLE

= pie R^2

=pie (2r ×2r)

= pie ( 4r^2)

= 4 pie r^2

Step-by-step explanation: