8, 9, 10, 11, 11, 14, 16, 17, 19, 20, 23, 26, 27, 28, 29}

What is the mean? Round to the nearest tenth,What is the mode?,What is the median?,What is the value of Q1?,What is the value of Q3?,What is the Interquartile Range?,What is the range?,Which of the data is the 20th percentile?,What percenitile is the data value “20”? Rouond to the nearest whole number.