3. From the 140 children whose urinary concentration of lead was investigated 40 were chosen who were aged at least 1 year but less than 5 years. The following concentrations of copper were found. 0.70, 0.45, 0.72, 0.30, 1.16, 0.69, 0.83,0.74, 1.24, 0.77, 0.65, 0.76, 0.42, 0.94, 0.36, 0.98, 0.64,0.90, 0.63, 0.55,0.78, 0.10, 0.52, 0.42, 0.58, 0.62, 1.12,0.86, 0.74, 1.04,0.65, 0.66, 0.81, 0.48, 0.85, 0.75, 0.73,0.50, 0.34, 0.88 Find the median, range, quartiles and, plot a box and whisker diagram .
