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.
Abies. Forming perfect pyramids, firs bring a bit of mountain magnificence to urban and suburban gardens. This family of long-lived evergreen trees is valued for soft needles, graceful branches, and strong fragrance.It's no wonder that fir cultivars are frequently chosen by the American Conifer Society as Conifer of the Year. Balsam, Fraser, and noble firs are popular Christmas trees.ompact blue alpine fir. Abies lasiocarpa var arizonica 'Glauca Compacta' offers silvery blue needles on a small tree that reaches 15 feet tall and 10 feet wide. Zones 5-6. Abies concolor 'Compacta' is a slow-growing selection with blue-green needles and reaches about 10 feet tall and 6 feet wide.