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.
Dwarf Alberta spruce trees are classified as evergreen conifers. USDA Plant Hardiness Zones for Dwarf Alberta Spruce Trees: Dwarf Alberta spruce trees can be grown in zones 3-8.Characteristics: Dwarf Alberta spruce trees may eventually reach 12 feet in height, but only over a long period of time (growing just 2-4 inches per year). They have a classic Christmas tree shape.The green needles have a tight, densely-packed growth habit that gives dwarf Alberta spruce trees a fuzzy look.haracteristics: Dwarf Alberta spruce trees may eventually reach 12 feet in height, but only over a long period of time (growing just 2-4 inches per year). They have a classic Christmas tree shape. The green needles have a tight, densely-packed growth habit that gives dwarf Alberta spruce trees a fuzzy look.