Construct the discrete probability distribution for the random variable described. Express the probabilities as simplified fractions. The number of tails in 3 tosses of a coin.

Step 1 ：The probability of getting 0 tails is \(\frac{1}{8}\)

Step 2 ：The probability of getting 1 tail is \(\frac{3}{8}\)

Step 3 ：The probability of getting 2 tails is \(\frac{3}{8}\)

Step 4 ：The probability of getting 3 tails is \(\frac{1}{8}\)