Please Only R should be used for plots and calculations.

The Thumper Seed Company promises a germination rate of 90% for its arugula seeds. A home gardener has planted 20 of these seeds. What's the probability that:

1. None will sprout 2. Exactly 15 will sprout? 3. Fewer than 15 will sprout? 4. More than 15, but no more than 18, will sprout? 5. All 20 will sprout?

Show your answer using R.