A distribution of values is normal with a mean of 67.4 and a standard deviation of 7.4. Find P91, which is the score separating the bottom 91% from the top 9%.

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Solve the inequality and graph 6j - 7 < 5

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red