Find the standard deviation of the number of 5s when a die is rolled 50 times. 2) A test of the lymphatic system of the population of scottish children with a rare genetic disease is given below. 130.841, 136.526, 133.376, 133.533, 134.571, 128.196, 128.882, 134.061, 131.239, 134.966, 136.589, 132.597, 135.862, 130.697, 129.827, 132.876. what is the mean of the data? what is the standard deviation of the data?