John puts the letters of the word science on pieces of paper and puts the pieces in a bag. he draws two letters without looking. the first piece of paper is not replaced before the second piece is drawn. what is the probability that john draws a c twice?

This is the concept of probability and statistics, to solve the question we proceed as follows;

given that the word the word science has 7 letters;

the probability of selecting a c in the first draw will be:

P (selecting c in first draw) = 2/7

Probability of selecting a c on the second draw will be:

P (selecting a c in second draw) = 1/6

since these two events are mutually independent, the probability of selecting c twice will be:

P (selecting C twice) = 1/6*2/7

=1/21