Respuesta :
Answer:
b
Step-by-step explanation:
The sample consists of 100 random samples of trees. This means that a parameter is not covered and therefore a is can't be correct.
Not all the trees were used in the sample and therefore c stating that 40% of all the trees in the forest show some signs of damage is not true.
We don't know the number of trees in the forest and 40% of a sample where damage therefore d and e cannot be true.
40% is merely a statistic of 100 sample trees
In a study of the effects of acid rain, a random sample of 100 trees from a particular forest is examined. Forty percent of these show some signs of damage.
Given:
- Trees=100
- Some signs shows Damage=40%
Option (a):- The sample consists of samples of 100 random trees by which means that the parameter of 40% is not covered . Therefore, Statement(a) is NOT CORRECT.
Option (b):- The sample consists of samples of 100 random trees by which means that it have the statistic of 40% Therefore, Statement(b) is CORRECT.
Option(c):- Not Each of the trees will be used in that sample and therefore, it states that 40% of all the trees in the forest show some signs of damage.
Therefore, Statement(c) is NOT CORRECT.
Option (d):-Here we dont have the number of trees in the forest & 40% of the sample , damage therefore d and e cannot be TRUE Therefore, Statement(c) is NOT CORRECT
Therefore, (b) 40% is a statistic for forty percent of these show some signs of damage.
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