Find how many measurements lie (a) less than one sample standard deviation from the sample mean and (b) more than two sample standard deviations from the sample mean for the given measurement. Which behave more or less like the normal distribution?
For information: The seed number S in Exercise 4.

Plant Weight Height Yield Number of seeds 2.1 0045 3.3 0.132 3.5 0.187 18.6 4.2 0.129 20.1 5.0 0.201 2.3 6.1 0.184 38.4 55 0.231 8 40.2 7.2 0298 7.4 0.287 10 43,86.9 0.310 6.7 0.276 7.6 0.353 5.6 0.462 8.0 0.561 7.3 10.8 12.1 18 3 14 7 21 9 42.1 43.8 15 12 13 45.8 14 15 52.7 78 16 60.3 17 98.9 11.2 0.723 18 178.3 19 213.1 13.5 1.022 20 298.8 17.3 L.745 44.9 46.4 9.8 0.598 9.2 0.668 17 21