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Aleks04 [339]
2 years ago
14

In a study of the effects of acid rain, a random sample of 100 trees from a particular forest is examined. Forty percent of thes

e show some signs of damage. Which of the following statements is correct?
a.None of the above
b. The sampling distribution of the proportion of damaged trees is approximately Normal
c.This is a comparative experiment.
d.If a sample of 1000 trees was examined, the variability of the sample proportion would be larger than in a sample of 100 trees
e.If we took another random sample of trees, we would find that 40% of these would show some signs of damage
Mathematics
2 answers:
kolbaska11 [484]2 years ago
7 0

Answer: B

Step-by-step explanation:

The sampling distribution of the proportion of damaged trees is approximately Normal

frez [133]2 years ago
3 0

Answer:B. The sampling distribution of the proportion of damaged trees is approximately Normal.

Step-by-step explanation: Sampling distribution is a probability distribution of a statistic which is gotten through the collection of a large number of samples from the population of interest.

A normal distribution is a distribution of the samples symmetrically around the mean, when a Statistical metric shows that the outcome is distributed around the central region it shows that the distribution is normal.

FOR A FORTY PERCENT INCIDENCE, THE SAMPLING DISTRIBUTION OF THE PROPORTION OF DAMAGED TREES IS APPROXIMATELY NORMAL AS IT IS CLOSE TO 50% WHICH IS THE MEAN OF 100%.

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An octopus weighted 5/6 kilogram. After two weeks, it's weight has increased by 3/10 kilogram. But afterwards, it lost 1/5 kilog
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Answer

14/15 kg

Step-by-step explanation:

Rewriting our equation with parts separated

=1+215−15

Solving the fraction parts

2/15−15=?

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LCD = 15

2/15−3/15=−1/15

Combining the whole and fraction parts

1−1/15=14/15

Solution by Formulas

converting mixed numbers to fractions, our initial equation becomes,

17/15−15

Applying the fractions formula for subtraction,

=(17×5)−(1×15)15×5

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2 years ago
Draw a pie chart representation of Roxy’s one-year budget plan using the expenses and income amounts from parts B through E.
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Answer:

Sorry for taking points but where are parts b and e

Step-by-step explanation:

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2 years ago
Maggie brought $10 to the candy store she will buy a certain amount of fudge 1 pound cost to 2.30 if p represents the money magg
xxTIMURxx [149]

Question is Incomplete. Complete question is given below;

Maggie brought $10 to the candy store. She will buy a certain amount of fudge. One pound of fudge costs $2.30.  If p represents the amount of fudge, in pounds, Maggie buys, which expression represents the money Maggie has left after visiting the candy store?

Answer:

The expression that represent the money Maggie has left after visiting the candy store is (10-2.3p)

Step-by-step explanation:

Given:

Money Maggie brought at store = $10

Cost of 1 pound of fudge = $2.30

Let the amount of fudge be p

We need to find the amount of Money Maggie has left with after visiting the store.

The amount of Money Maggie has left with can be calculate by subtracting the amount of fudge she bought multiplied by Cost of 1 pound of fudge with Money Maggie brought at store.

The equation can be framed as;

Money left = 10-2.3p

Hence, The expression that represent the money Maggie has left after visiting the candy store is (10-2.3p)

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Drag the tiles to the correct boxes to complete the pairs. A group of people were surveyed, and the data about their age and hem
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Step-by-step explanation:

I did this on plato. It was right!

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