Probability of selecting a consonant from the letters of the word '$\mathrm{FATHER}$'

Draw a pie chart of the data given below:
The time spent by a class $\mathrm{VIII}$ student during a day.

Should a student of class $\mathrm{VIII}$ study for just $2$ hours daily? Which time is considered the best time for self- study$?$

From a bag containing$2$ saffron,$3$ white and $4$ green balls a ball is drawn at random. Find the probability that ball drawn is saffron.

From a bag containing$2$ saffron,$3$ white and $4$ green balls a ball is drawn at random. Find the probability that ball drawn is

White

From a bag containing$2$ saffron,$3$ white and $4$ green balls a ball is drawn at random. Find the probability that ball drawn is

Green