Answer:
250
Step-by-step explanation:
10% =25 students times ten is 250
Answer:
x=11
Step-by-step explanation:
13×11+26=117
5×11+8=63
117+63=180
The outcome A="At least one" means {1,2,3,4,5......n} where n is the maximum possible outcome.
The only other outcome (B) left (i.e. the complement of the above event "at least one") is (B)={0}.
Therefore, by Kolmogorov's second axiom, A and B are complements, and
P(A)+P(B)=1
therefore
P(A)=1-P(B), or in words,
Probability of outcomes of "at least one" is the complement of the outcome of "0" item.
The answer to this question is £155
There are 13 diamonds in the deck, so 
ways of drawing 3 diamonds.
There is a total of 
ways of drawing any 3 cards from the deck.
So the probability of drawing 3 diamonds is
where 
.
