Final answer:
To construct a histogram for the given sample data and describe the general shape of the curve.
Step-by-step explanation:
Histogram Construction
Using the given sample data, calculate the mean of each group of five values.
Create intervals for the histogram, with a bar width of one day.
Count the frequency of values falling into each interval.
Plot the frequencies on the vertical axis and the intervals on the horizontal axis.
Connect the tops of the bars to form a smooth curve.
Description of the Curve
The general shape of the curve can be described as bell-shaped or approximately symmetric. It has a peak at the mean and gradually tapers off on both sides.