15. Use this information for this question and the next question. Below is the percentile table for distribution of employment rate in 34 OECD countries. Percentiles Percentiles 5 10 25 50 75 90 95 Employment_rate HAverage 49.75 56.00 60.75 67.00 72.25 74.50 80.50 Tukey's Hinges 61.00 67.00 72.00 Approximately, how many OECD countries had employment rate of at most 67? (a) 17 (b) 34 (c) 23 (d) 50 (e) 67 16. Refer to the information in question 15. Which of the following statement best describe the IQR value for the distribution of employment rate