Alarms/week01234>4Numberofweeks49121962 The table below gives the numb

1.	Alarms/week01234>4Numberofweeks49121962 The table below gives the number of ﬁre alarms that a certain station responded to every week last year. Find the probability that a week chosen at random had (i) at least 3 incidents, (ii) no incidents, (iii) an odd number of incidents
Answer» $\begin{matrix} A l a r m s / w e e k & 0 & 1 & 2 & 3 & 4 & > 4 N u m b e r o f w e e k s & 4 & 9 & 12 & 19 & 6 & 2 \end{matrix}$ The table below gives the number of ﬁre alarms that a certain station responded to every week last year. Find the probability that a week chosen at random had (i) at least 3 incidents, (ii) no incidents, (iii) an odd number of incidents

Alarms/week01234>4Numberofweeks49121962 The table below gives the number of ﬁre alarms that a certain station responded to every week last year. Find the probability that a week chosen at random had (i) at least 3 incidents, (ii) no incidents, (iii) an odd number of incidents

Answer»

$\begin{matrix} A l a r m s / w e e k & 0 & 1 & 2 & 3 & 4 & > 4 N u m b e r o f w e e k s & 4 & 9 & 12 & 19 & 6 & 2 \end{matrix}$

The table below gives the number of ﬁre alarms that a certain station responded to every week last year.

Find the probability that a week chosen at random had (i) at least 3 incidents,
(ii) no incidents,
(iii) an odd number of incidents