Between 11 p. m. and midnight on thursday night, mystery pizza gets an average of 5.1 telephone orders per hour. (a) find the probability that at least 35 minutes will elapse before the next telephone order. (round intermediate values and your final answer to 4 decimal places.) probability (b) find the probability that less than 21 minutes will elapse. (round intermediate values and your final answer to 4 decimal places.) probability (c) find the probability that between 21 and 35 minutes will elapse. (round intermediate values and your final answer to 4 decimal places.) probability

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed