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.
Excellent evergreen trees for landscape - good survival rate ; These evergreen trees require cool, sheltered moist location, well-drained soil; Restrictions limited as far as soil types and conditions; These evergreen trees are found in northern areas - from sea level to 6,000' The needles on these evergreen trees are 1/2 to 1 1/4 long - very fragrant, good color; These evergreen trees grow symmetrical and dense with a pyramidal crown ; These evergreen trees make excellent ornamental, Christmas tree or timber; Will not do well in heavy, wet clay soil