The educational qualifications of $100$ teachers of a Government higher secondary school are tabulated below
Age/ Education M.Phil Master Degree Only Bachelor Degree Only
below $30$ $5$ $10$ $10$
$30 - 40$ $15$ $20$ $15$
above $40$ $5$ $5$ $15$
If a teacher is selected at random what is the probability that the chosen teacher has only a bachelor degree and age above $40$

\frac{3}{20}

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\frac{4}{20}

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\frac{5}{20}

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None of these

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Solution

The correct option is A $\frac{3}{20}$
P(bachelor degree only and age above $40$ ) $= \frac{15}{100} = \frac{3}{20}$

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Similar questions

Class:	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$	$35 - 40$	$40 - 45$
Frequency:	$5$	$6$	$15$	$10$	$5$	$4$	$2$	$2$

X	Below 5	5−10	10−15	15−20	20−25	25−30	30−35	35−40	Above 40
Y	20	24	32	28	20	16	34	10	8

Q_{3}

Marks Group	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$	2 $5 - 30$	$30 - 35$	$35 - 40$	$40 - 45$
No. of Students	$5$	$6$	$15$	$10$	$5$	$4$	$2$	$1$

$C I$	$0 - 10$	$10 - 15$	$15 - 20$	$20 - 30$	$30 - 40$	$40 - 60$	$60 - 70$
$f$	$20$	$15$	$10$	$25$	$5$	$30$	$50$

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