Example 9: The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. If we stipulate that a baby is. premature if the length of pregnancy is in the lowest 4%, find the length that. separates premature babies form those who are not premature.) Table A-2 is designed only for the standard normal distribution, which has a mean of 0 and a standard deviation of 1. II) Each value in the body of the table is the cumulative area from the left op to a vertical line above a specific value of z.
The black mamba (Dendroaspis polylepis) is a venomous snake endemic to sub-Saharan Africa. It takes its common name not from the colour of its scales, but from the interior of its mouth, which is inky-black.
5. Black Mamba â. Black Mamba is the longest snake in Africa, reaching up to 4.5 meters in length. It is also the fastest snake in the world, capable of travelling a distance of 20 km in less than an hour.This deadliest snake has got its name not from its skin color but from the black color of the inside of its mouth.. Black Mamba â. Black Mamba is the longest snake in Africa, reaching up to 4.5 meters in length. It is also the fastest snake in the world, capable of travelling a distance of 20 km in less than an hour.