Подобни търсения
The life of light bulbs is distributed normally. The variance of the lifetime is 400 and the mean lifetime of a bulb is 580 The life of light bulbs is distributed normally. The variance of the lifetime is 900 and the mean lifetime of a bulb is 580 bjork book от слънце киви за дороти bjork book от слънце кино за дороти bjork book от слънце кинг за дороти