Tom plants 3 seeds.

The probability that a seed will germinate is 4/5.

A) Calculate the probability that all 3 seeds will germinate.

B) Calculate the probability that at least one of the seeds will germinate.

A. 64/125

B. 124/125.

Step-by-step explanation:

A). As the events (germinate or not germinate) are independent we multiply the probabilities.

Prob (All seeds germinate) = 4/5*4/5*4/5 = 64/125.

B). Probability of at least one germinating = 1 - probability that none germinate

Probability of 1 seed not germinating = 1 - 45 = 1/5.

So Prob (at least one germinating)

= 1 - (1/5 * 1/5 * 1/5)

= 1 - 1/125

= 124/125.