To calculate the mean all you have to do is add all the numbers from the data set and then divide the answer between the number of data set. For example, if you data set is 2,3,4,5,6,then you add 2+3+4+5+6=20 Now you divide 20 between the total number of data, so from 2 to 6 you have 5 numbers. You divide 20/5 and that that is equal to 4.
Since you did not post your data set I can not tell you exactly the answer but you can use this information to walk you through it.
Electricity black outs lightning and loud noises
They must find food
they must find shelter
The answer to your question is flowering plants are the most recently evolved of the major groups of plants, arising only about 130 million years ago. Despite their geological youthfulness, angiosperms are the dominant plants of the world today: about 80% of all living plant species are flowering plants. Furthermore, they occupy a greater variety of habitats than any other group of plants. The ancestors of flowering plants are the gymnosperms , which are the other major group of plants that produce seeds. The gymnosperms, however, produce their seeds on the surface of leaf-like structures, which makes the seeds vulnerable to mechanical damage when winds whip the branches back and forth, and to drying out. Most importantly, conifer seeds are vulnerable to insects and other animals, which view seeds as nutritious, energy packed treats. In angiosperms, the margins of the seed-bearing leaves have become inrolled and fused, so the seeds are no longer exposed but are more safely tucked inside the newly evolved "vessel," which is the ovary.
The other major advance of the angiosperms over the gymnosperms was the evolution of the flower, which is the structure responsible for sexual reproduction in these plants. The function of sexual reproduction is to bring together genetic material from two individuals of differing ancestry, so that the offspring will have a new genetic makeup.
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“Lord Randall” is a Scottish ballad in the form of a narrative song. A narrative song is a song that depicts or tells a story. A ballad is unique for it directly tells a story and emphasizes climactic incidents. It strips away those details which are not important to the plot. The story of “Lord Randall” narrates about a man who has been poisoned by his lover. The story does not tell about the incident’s background nor is the audience aware why the man has been poisoned. The story just shows the man revealing that he has been poisoned, his statement of his last will and testament, and his curse on the lover who planned to kill him. The technique shown in this story is what we call the incremental repetition. The incremental repetition is usually observed in poetry of oral tradition wherein a line is repeated in a changed context or with minor changes in the repeated part.
