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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?

User Squadrick
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2 Answers

3 votes

Answer:

D. 1/221

Explanation:

User Ahmed Masud
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3 votes
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
User Siya Mzam
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