Answer: Frequency distribution helps to understand data. some complex data needs to be converted into intervals to see its frequency of occurrence. it helps to find the mean median and mode of the data. It helps in the analysis of data and its practical implementation.
Explanation:
Answer:
B) 1/5 ba^2 T^5
Explanation:
The dissipated energy is given by the work done over the object by the force F=-bv. The work is given by the following formula:

you derivative the function f(x) and replace v by the derivative dx/dt you obtain:

hence, the dissipated energy is 1/5 ba^2 T^5
The first one is B. I think and the second one is A.