From well shuffled standard pack of 52 playing cards,one card is drawn. What is the probability that it is either a red card or black card?
P(red cards)=26/52
P(black cards)=26/52
P(red or black cards)=26/52+26/52=1
Find the range and mode of the data 17, 18, 28, 19, 16, 18, 17, 29, 18
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