When analysing normally distributed data, standard deviation can be used in conjunction with the mean in order to calculate data intervals. If = mean, S = standard deviation and x = a value in the data set, then. 1  about 68% of the data lie in the interval: . 2  about 95% of the data lie in the interval: + 2S.
Small Dwarf Flowering Bushes. Small flowering bushes work well in various areas of the yard. Dwarf bushes, also called shrubs, are those that typically grow to a height of anywhere from 6 inches to 3 feet tall. Many varieties of dwarf miniature bushes are evergreen, remaining green throughout the year, but also bloom in certain seasons. Dwarf flowering bushes are known for their hardiness in all planting zones, including the coastal climates.
EVERGREEN TREE TYPES. In botany, an evergreen tree type or plant is a plant that has leaves in all seasons. This contrasts with deciduous tree type or plants, which completely lose their foliage during the winter or dry season. There are many different kinds of evergreen plants, both trees and shrubs. Evergreens include: most species of conifers (e.g., hemlock trees, blue spruce tree , red cedar, and white/scots/jack pine trees) live oak, holly, and ancient gymnosperms such as cycads.