6. The heights of 60 students of a class given in the following table: (iii)$158–172$ - Noon Academy

6. The heights of 60 students of a class given in the following table: (iii) $158-172$

Class 10 | Frank | ICSE | Maths | Probability

6. The heights of 60 students of a class given in the following table: (iii) $158-172$

given table in the question is as follows:

Height (in cm)	$150-155$	$155-158$	$158-160$	$160-165$	$165-172$
Number of Students	$8$	$20$	$25$	$4$	$3$

Solution:-

As per the question give we can say

The total number of students $=60$

(iii)

Total number of students, whose height lie in the interval,

Thus, $158-172=25+4+3=32$

P(Height of a student lie in the interval $158-172$ )

= (Number of students whose height lies in the interval $158-172$ )/(Total number

of students)

$=32/60$

$=8/15$

i

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