At a toy shop,there are $10$ toys in a box of which $3$ toys are defective. $A$ customer would purchase a non-defective toy only. The probability that a toy selected at random from the box is purchased by the customer is ..............

$A$ balanced die is rolled twice. Then,the probability of the event that the sum of the numbers received in two trials is more than $10$ is ...........

$A$ bag contains orange flavoured candies only. Rahi takes out one candy without looking into the bag. Then,the probabilities that the candy taken out is orange flavoured and is lemon flavoured are ........ respectively.

Two balanced dice are rolled. Find the probability that the sum of numbers on two dice is even.

All the jacks,queens,and kings are removed from a deck of $52$ playing cards. The remaining cards are well shuffled,and then one card is drawn at random. Giving ace a value of $1$ and similar values for other cards,find the probability that the card has a value:
$(i)$ $7$
$(ii)$ greater than $7$
$(iii)$ less than $7$

$A$ card is selected at random from a well-shuffled pack of $52$ cards. Find the probability that the selected card is a seven.