Probability of Event not Happening
Probability of Event not Happening
Probability of Event Not Happening:
Probability of Happening of Event + Probability of Not Happening of Event = 1
Probability of Event Not Happening = 1- Probability of Happening of Event
Example 1: We have balls number 1 to 9. What is the probability of not picking an even numbered ball.
Sol: Total number of possible outcomes= 9 as there are 9 balls.
Total Number of favourable cases = 1,3,5,7,9 Numberd ball is picked. Therefore the number of favourable cases is 5
Otherwise as in the earlier example, we have calculated the probability of occuranceas= 4/9
Probability of Not occuring an event
If the probability of Shreyan's passing his exam is 5/7, what is the probability of he being failed ? | |||
| Right Option : B | |||
| View Explanation | |||
The probability of an impossible event is | |||
| Right Option : B | |||
| View Explanation | |||
In a cricket match ,a batsman hits a boundary 8 times out of 40 balls he play.find the probability that he didn't hit a boundary.? | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
