Question

A student asks her teacher “What is the probability that it will take you exactly 20 minutes to walk to school in the morning?” What will be the teacher's reply? What is a better question to ask? Explain by referring to concepts that we discussed in this unit.

Answer 1

The teachers reply is none because the space of times it can take to reach school is

$(0, \infin)$

The probability of selecting a particular number from an infinite space is zero.

A better question to ask is, what is the probability of taking less than 20 minutes to walk to school?