The normal distribution is the most important probability distribution in statistics because it fits many natural phenomena. For example, height, blood pressure, measurement error, and IQ scores follow the normal distribution. It is also known as the Gaussian distribution and the bell curve.
Anne = x devi = y x = y + 24 1/2 x = 3/5 y x = 6/5 y (we devided both by 1/2) 6/5 y = y + 24 6/5 y - y = 24 1/5 y = 24 y = 24 * 5 = 120 x = 120 + 24 = 144 so anne has 144 cards and devi has 120 cards.