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b) c) What should the relative frequencies always add up to? d) What should the last value always be in the cumulative frequency column? e) What is the frequency for students that were in the $C$ range of 70-79? f) What is the relative frequency for students that were in the $C$ range of 70-79? g) Which is the modal class? h) Which class has a relative frequency of $12%$ ? i) What is the cumulative frequency for students that were in the B range of 80-89? j) Which class has a cumulative relative frequency of $40%$ ?
5. An instructor had the following grades recorded for an exam. a) Create a stem-and-leaf plot. b) Comnlata tha follin...sinn w..LL- c) what should the relative frequencies always add up to? d) What should the last value always be in the cumulative frequency column? c) What is the frequency for students that were in the C range of 70-79? 1) What is the relative frequency for students that were in the $C$ range of 70-79? g) Which is the modal class? h) Which class has a relative frequency of $12%$ ? i) What is the cumulative frequency for students that were in the B range of $80?89$ ? j) Which class has a cumulative relative frequency of $40%$ ?

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