Page 15 - Digi notes maths

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1 Week  7 days

366  52 Complete week means 7 Sundays Confirmed; and 2 odd day
7
This 2 days have Uncertain inty

This 1 day could be (If this 1 day is Sunday the n 53 Sundays would be completed) :
S    Sun ,Mon   , Mon ,Tue   , Tue ,Wed   , Wed ,Thu   , Thu ,Fri   , Fri ,Sat   , Sat ,Sun  n   7S

E    Sun ,Mon   , Sat ,Sun  n   2E

P  53 Sundays   2
7

10. The probability that a candidate will qualify an exam is

1/3. What is the probability that he will not qualify the exam?

P Not Qualify  1 P Qualify  1 1  2
3
3

11. The probability that a candidate will fail in a test is 1/6.

What is the probability that he will pass the test?

P Pass  1 P Fail  1 1  5
6 6

Q. Find the probability of arranging the letters of the word

NUMERICAL in the following cases:

1) So that the letter R always come in the middle.

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