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Tanya Bhatia

Topper in 12th Cbse Economics Hons from Shyam Lal College DU, M.A in Economics. Expert in NET for Economics.Teaching is work of heart❤❤❤

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Binu Varghese

2 months ago

thanks a lot sir

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Ekta

a month ago

mam this also can be solved by multiplicative theorem of probability?? I tried and ans is same . is this right method

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COMPLETE ANALYSIS OF DEC 2018 PAPER BY TANYA BHATIA

Q.89A box contains 10 bulbs, 4 of which are defective. If 3 of the bulbs are drawn rande without replacement, what is the probability that all three bulbs are defective? ptions 4 1 10 2. 4 3. 30 4. 10

Bon= lo Bulbs thot a00 3 bulbs arre defecive) C3 30