I Tweve eloctrie bulbs ane drawn indeponlenily every hour frem a production line at a facury. The mmber of defoctive hulbs are random and indepondent. Suppne that the prohability of finding e defective hulh is 5072 a What is the probahility that a bulb in defective . Hone, what in the prohatility tha twe ow mone builbs are defective e What is the prohathility that throe or mne hulbs tosted are the weed defective bulhe detectod

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