Exam 6: Discrete Probability Distributions

A loaf of bread is normally distributed with a mean of 22 ounces and a standard deviation of ½ Ounces. (i. The probability that a loaf of bread is 22.25 ounces is 0.0. (ii. The probability that a loaf of bread is > 21 ounces is 0.9772. (iii) The probability that a loaf of bread is < 24 ounces is 1.0.

Tabulation of a strike vote showed that 90% of those voting cast their ballot in favour of strike Action. You take a sample of 50 voters. Assume this to be a binomial distribution. What is the standard deviation for this distribution?

One classic use of the normal distribution is inspired by a letter to Dear Abbey in which a wife Claimed to have given birth 308 days after a brief visit from her husband, who was serving in the Navy. The lengths of pregnancies are normally distributed with a mean of 268 days and a standard Deviation of 15 days. Given this information. (i. the probability of a pregnancy lasting 300 days or longer is 0.0166. (ii. The result suggests that the husband is not the father of the child.

i. A continuity correction compensates for estimating a discrete distribution with a continuous Distribution. ii. The normal probability distribution is generally deemed a good approximation for the binomial Probability distribution when np and n(1 - p) are both greater than five. iii. When a continuity correction factor is used, its value is 1.

i. Asymptotic, means that the normal curve gets closer and closer to the X-axis but never actually Touches it. ii. When referring to the normal probability function, there is not just one of them; there is a "family" Of them. iii. Some normal probability distributions have equal arithmetic means, but their standard deviations May be different.