Answer :
The Probability that the sock is black or gray is
What is Probability?
A probability is a numerical representation of the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.
Total number of socks in a bag = 7+3+1 =11
so total number of outcomes possible = 11
The chance that black or gray will occur, resulting in a greater number of favorable outcomes
Number of favourable outcome will be -
Number of Black sock + Number of gray sock
=7+1
=8
Therefore probability (P) will be 8/11
=0.7272
and individual probability of coming black and gray sock will be
Probability for black socks is 7/11
Probability for gray socks is 1/11
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