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3 A scientist takes four random samples of a population of 700 trees. Each sample is

the same size. The first sample indicates that 30% of the trees are oak, while the

second sample indicates that only 15% of the trees are oak. The third sample

indicates that 26% of the trees are oak. The fourth sample indicates that 29% of

the trees are oak. Based on the data, about how many of the 700 trees are oak?

Respuesta :

Using proportions, it is found that about 175 trees are oak.

What is a proportion?

A proportion is a fraction of a total amount.

For the four samples, the proportions are: {0.3, 0.15, 0.26, 0.29}.

Hence, the mean proportion is given by:

M = (0.3 + 0.15 + 0.26 + 0.29)/4 = 0.25

Out of 700 trees:

700 x 0.25 = 175.

About 175 trees are oak.

More can be learned about proportions at https://brainly.com/question/24372153