Question

# The chance she will be successful, is

A
0.28
B
0.38
C
0.48
D
0.58

Solution

## The correct option is C $$0.48$$Given,The probability of a Jee Aspirant to be successful if he studies for 10 hours per day,$$P(t_{10})=0.8$$ The probability of a Jee Aspirant to be successful if he studies for 7 hours per day,$$P(t_{7})=0.6$$The probability of a Jee Aspirant to be successful if he studies for 4 hours per day,$$P(t_{4})=0.4$$The probability that she will study 10 hours per day,$$\displaystyle P(A)=0.1$$The probability that she will study 7 hours per day,$$\displaystyle P (B)=0.2$$The probability that she will study 4 hours per day,$$\displaystyle P(C)=0.7$$$$\therefore The\;probability\;that\;she\;will\;be\;successful,P(S)=P(t_{10})*P(A)+P(t_{7})*P(B)+P(t_{4})*P(C)$$$$=0.8*0.1+0.6*0.2+0.4*0.7=0.48$$Mathematics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More