Given table in the question us as follows:
Height (in cm) | $150–155$ | $155–158$ | $158–160$ | $160–165$ | $165–172$ |
Number of Students | $8$ | $20$ | $25$ | $4$ | $3$ |
As per the question give we can say
The total number of students $=60$
(i)
Total number of students whose height lie in the interval $155–158=20$
Now,
P(Height of a student lies in the interval $155–158$)
= (Number of students whose height lies in the interval $155–158$)/(Total number
of students)
$=20/60$
$=1/3$
(ii)
Total number of students whose height lie in the interval,
Thus,$150-160=8+20+25=53$
P(Height of a student lies in the interval $150–160$)
= (Number of students whose height lies in the interval $150–160$)/(Total number
of students)
$=63/60$