A forest consists of two types of trees: those that are 0–5 ft and those that are taller than 5 ft. Each year, 40% of all 0–5- ft tall trees die, 10% are sold for $20 each, 30% stay between 0 and 5 ft, and 20% grow to be more than 5 ft. Each year, 50% of all trees taller than 5 ft are sold for $50, 20% are sold for $30, and 30% remain in the forest.
a What is the probability that a 0–5-ft tall tree will die before being sold?
b If a tree (less than 5 ft) is planted, what is the expected revenue earned from that tree?
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Answer:
Different shapes of cells
Spherical Cells. They are round in shape. Example - Red Blood Cells in Humans.
Spindle Cell. They are elongated like a spindle. Example - Muscle Cell in Humans.
Elongated Cell. They are shaped like a branch of a tree. ...
What is shape of amoeba? Amoeba is a single celled organism.
27-May-2020
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Answer:a. 40%
b. $3.2
Step-by-step explanation:
a. As each year 40% of all 0-5ft trees die and other 10% are sold. That means the probability of a 0-5ft tall tree will die before being sold is 40%.
b. The probability of a tree that grows from 0-5ft to more than 5 ft AND get sold is
20% * 20% = 0.2 * 0.2 = 0.04
The probability that a tree stays the same and gets sold in the following year is small and can be neglected.
The expected value to earn from a planted tree is the combination of the expected value of its being sold at between 0-5ft and when it's more than 5 ft
Step-by-step explanation:
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