Progesterone, made by the corpus luteum (ruptured follicle) after the egg is released, stimulates the glands in the endometrium to begin secreting their nourishing substance. This is the secretory phase of the cycle and is the only time when a fertilized egg can implant in the lining.
Mean: The mean is the average of a set of numbers, determined by adding them together and dividing by how many numbers are present. Median: The median is the middle value between the smallest and largest of a set of numbers. Mode: The mode is the number that appears most often in a data set. It only has significance if numbers are repeated. Range: The range is the difference between the largest and smallest numbers.
The mode of a continuous probability distribution is the value x at which its probability density function has its maximum value, so the mode is at the peak. Like the statistical mean and median, the mode is a way of expressing, in a single number, important information about a random variable or a population. The numerical value of the mode is the same as that of the mean and median in a normal distribution, and it may be very different in highly skewed distributions.