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Engineering Mathematics - GATE - Statistics and Probablity - Part 6 - Basics Rules of Probability
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Discussed calculations of Probablity in case of different type of events ie. Mutually exclusive , collectively exhaustive, equally likely and independent events. This lecture also covers application of DeMorgan's law and basic Probablity rules, covering all topics from GATE. syllabus under this unit

## Prakhar Shrivastava is teaching live on Unacademy Plus

Prakhar Shrivastava
INDUSTRIAL AND PRODUCTION | IIT B | NITIE | GATE - 2016 ( AIR -03, SCORE - 939/1000) |Tennis | Street plays | Foodie

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sir aap ki awaj clear,saaf nhi hai video me
could you please help me with this question? A die is constructed so that a 1 or 2 occurs twice as often as a 5, which occurs three times as often as a 3, 4 or 6. If the die is tossed once, find the probability of: 1. the no. is even 2. the number is perfect square 3.the number is greater than 4.
Let prob of 3, 4, 6 = x Prob of 5 = 3*x = 3x Prob of 1, 2 = 2 * 3x = 6x total faces = 18x = 6x + 6x + x + 3x + x + x 1. Even no probability = prob of (2 + 4 + 6) = 6x + x + x = 8x/18x = 4/9 2 perfect square = prob of (1 + 4) = 6x + x = 7x/18x = 7/18 3. Greater than 4 = prob (5 + 6) = 3x + x = 4x/18 = 2/9
Shreya singh
a year ago
ohkay...I got it where I was going wrong. Thank you .
from where shoudl i practise probability and distribution sir as in bs grewal probability questions are not given .
Previous year GATE and IES questions
Praful 27
a year ago
Thanm u
Sir I am not able to find 30-40 questions per topic to practice ... what should i do ?
As i am preparing by myself right now
Hi shivani, Practice previous year questions, and then solve subjective questions from previous year IES paper, that would also do. Thanks, for anything else please feel free and reach out to us
ok thanks