10.2. Coin Tossing

Bernoulli trials can be generated from the binomial distribution. Here is a way to generate a sequence of trials:

> rbinom(10, size=1, prob=0.5)
 [1] 0 1 0 1 1 1 0 0 1 1

We can use table to verify the distribution of 0s and 1s:

> table(rbinom(1000, size=1, prob=0.5))

  0   1
513 487

Varying the probability of 1 has the desired impact:

> table(rbinom(1000, size=1, prob=0.4))

  0   1
629 371