Question

19.80 bulbs are selected at random from a lot and their life time is recorded in the form of a frequency table given below Life time 300 500 700 900 1100 Frequency 10 15 23 25 7 A bulb is chosen at random from the lot. What is the probability that the bulb chosen has life time less than 900 hours? (a) (b) (C) 5 (d) 73 23 80 80​

Answer 1

Answer:

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Step-by-step explanation:

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