These cards are put into a bag:
1 2 3 4 5 6 7 8 9 10
One card is chosen at random.
a)
What is the probability of choosing the card with the number 4?
b)
What is the probability of choosing a card that has a digit 1 on it?
c)
What is the probability of choosing a card that does not have a digit 1 on it?
Give your answers as fractions.​