of substandar ilbs in à packet three of Samantha's bulbs is nodelled by the random variable X where X ~ B(3,0.1). Round all your answers to 3 lecimal places. (a) What is the probability that exactly two substandard bulbs are in a packet? (a) (b) What is the probability that more than one substandard bulbs are in a packet? (b) (c) Find the mean number of substandard bulbs per packet.

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