Sahay Sir > Question Answers > NCERT Class 9 > Maths > Chapter 14 - Statistics > 29. 80 bulbs are selected at random from a lot and their life time (in hrs) is recorded in the form of a frequency table given below : One bulb is selected at random from the lot. The probability that its life is 1150 hours, is
29. 80 bulbs are selected at random from a lot and their life time (in hrs) is recorded in the form of a frequency table given below : One bulb is selected at random from the lot. The probability that its life is 1150 hours, is
