Analyze the probability and evaluate which battery should be manufactured

Probability (EVB) The electric vehicle battery performance is highly sensitive to the changing seasons. During the summer months, the battery's life is expected to decline the most and the during the winter months the life of the battery is expected to decline the least. The performance is also affected whether the vehicle is parked or driven over a period of 12 hours each day. The contingency Table A-3 below highlights the reduction in the battery life, in percentages, during each season of the year and whether the vehicle is parked or driven. Autumn Winter Spring Summer Total (%) Table A-3 Reduction in battery life if parked for 12 hours per day (%) 10 9 13 15 47 Reduction in battery life if driven for 12 hours per day (%) 12 11 14 16 53 Total (% ) Electric Vehicle Battery P(lowest reduction in battery life) P(highest reduction in battery life) P(reduction is battery life if parked in summer parked for 12 hours per day) 22 20 27 31 100 Table A-4 below shows the probabilities of the reduction of battery life in various circumstances. These probabilities were calculated using the data from Table A-3. Table A-4 Probability 0.09 0.16 0.32