Question Text
Question 1 :
A die is thrown .The probability that the number comes up even is ______ .
Question 2 :
What is the maximum value of the probability of an event?
Question 3 :
The probability of an event happening and the probability of the same event not happening (or the complement) must be a <br/>
Question 4 :
A game of chance consists of spinning an arrow which is equally likely to come to rest pointing to one of the number between 1 to 15. What is the probability that it will point to an odd number.
Question 5 :
In a race, the odds in favour of horses $A, B, C, D$ are $1:3, 1:4, 1:5$ and $1:6$ respectively. Find probability that one of them wins the race.
Question 6 :
A woman has 10 keys out of which only one opens a lock She tries the keys one after the another(keeping aside the failed ones) till she suceeds in opening the lock. What is the chance that it is the seventh key that works?
Question 7 :
A party of $23$ persons take their seats at a round table. The odds against two specified persons sitting together is
Question 8 :
A coin whose faces are marked 3 and 5 is tossed 4 times; what are the odds against the sum of the numbers thrown being less than 15?<br>
Question 9 :
There are only three events $A,B,C$ one of which must and only one can happen; the odds are $8$ to $3$ against $A,5$ to $2$ against $B$; find the odds against $C$
