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.
Most Poisonous, Deadliest or Most Dangerous Snakes in The World. Black Mamba. Black Mamba, also known as Common Mamba, is considered as the longest poisonous snake in the African continent. The name does not refer to the color of its scales, but it is characteristic of the interior appearance of its mouth.