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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
The measure of angle θ is 7pi/6. The measure of its reference angle is _ degrees, and sin is _.

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