3) A rechargeable emergency light whose life follows a normal distribution, with mean (600 + A) days and standard deviation (50 + A) days. If we choose a rechargeable emergency light at random what is the probability that its lifetime will be a. Less than 500 days? b. More than 550 days? c. Between 350 and 450 days? Note that: A is first two-digit number (before English alphabet letter) from your college ID. Bis last four-digit number (after English alphabet letter) from your college ID. For example, if your MEC ID is 16F234510, then A = 16 and B = 4510

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