Form 8: Histograms - Advanced Interpretation

Questions

1. MultiChoice

   Tree heights: 10-19 ft (3), 20-29 ft (8), 30-39 ft (14), 40-49 ft (5). In which interval does the median height lie?

2. MultiChoice

   Can you determine the exact minimum value of a dataset from a standard histogram?

3. MultiChoice

   Museum visitors: 0-9 yrs (10), 10-19 yrs (15), 20-29 yrs (20), 30-39 yrs (5). Which interval contains the modal class?

4. MultiChoice

   How many more visitors were in the 20-29 age group than the 30-39 age group?

5. MultiChoice

   Frequencies: 1-5 (4), 6-10 (8), 11-15 (12), 16-20 (6). Which interval contains the median of the 30 values?

6. MultiChoice

   What is the ratio of frequencies between interval 11-15 (12) and 1-5 (4)?

7. MultiChoice

   Why can't we find the exact mean directly from a histogram?

8. MultiChoice

   Weights of dogs: 5-14 lbs (6), 15-24 lbs (10), 25-34 lbs (4). What fraction of dogs weigh under 15 lbs?

9. MultiChoice

   In a histogram, if the total frequency is 50, how many data points fall below the 50th percentile?

10. MultiChoice

    Purchase amounts ($): 0-19 (8), 20-39 (12), 40-59 (15), 60-79 (5). What is the total number of purchases recorded?

11. MultiChoice

    What percentage of purchases were $40 or more?

12. MultiChoice

    In which interval does the 20th purchase fall when listed in increasing order?