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High School Mathematics14.10 Cumulative Frequency

For a particular year, following is the distribution on ages (in years) of the income tax department officers in a district:

 Age (in years) 15 - 20 20 - 25 25 - 30 30 - 35 35 - 40 40 - 45 45 - 50 No. of teachers 10 30 50 50 30 6 4

Directions: On the basis of the given information answer the following questions. Also write at least one example of your own.
 Q 1: The cumulative frequency and the frequency for the first class is the samefalsetrue Q 2: Write the lower limit of the seventh class interval.45251435 Q 3: Write down the cumulative frequency up to the fourth class interval.14090180170 Q 4: Write the lower limit of the first class interval.10351560 Q 5: Determine the class limits of the fourth class interval.15 - 2045 - 5040 - 4530 - 35 Question 6: This question is available to subscribers only! Question 7: This question is available to subscribers only!