An experiment was conducted to estimate the acceleration due to gravity, 9, using a free fall method. The results were rounded to 2 decimal places and recorded. The following dotplot gives 16 estimates of the acceleration due to gravity obtained in this way Free fall 0 0 O 9.85 9.9 9.95 9 (m/s?) Given that the mean of this dataset is 9.827 m/s' and the median is 9.8 m/s', choose the three options from the list below that are true. Select one or more: More than half of the data values are smaller than or equal to the median value. O The data values are mostly concentrated above 9.9 m/s?. O No data value occurs more than once. The majority of the data values are greater than the mean value. O The number of data values smaller than the mean is the same as the number greater than or equal to the mean. O Only one data value occurred more than four times. U Only one data value occurred exactly three times. O The data values are mostly concentrated at or below 9.8 m/s