According to the USGS site, below are approximate measurements of the height (in feet) of the Skagit Valley River taken in Concrete, Washington every 2 days during the month of May 2021.

18.1, 18.3 18.2 ,18.6, 18.4 18.7, 18.7, 18.9, 19.1 18.9 18.8, 18.6 19.1 19.3, 19.4, 19.4

a. Using technology report the mean, median and the interquartile range of these data

b. Draw a histogram of this data by hand using a bin width of 0.25 feet. be sure to label your axes and include an even scale.