MATHEMATICS HIGH SCHOOL

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

Answers

Answer 1
Answer:

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 brainly.com/question/24372153

Related Questions

162 is what percent of 200
Three times the quantity of a number and 2.5 is 6.6.
49.5 is what percent of 33?
To solve the problem: "What is 3/4 of 12," you would _____ .
If your state has a property tax rate of 0.056, and you pay $3,164.45 in property taxes every year, what is the assessed value of your property?a. $177,209 b. $21,265 c. $56,508 d. $48,684

MARKING BRAINLIEST!An airline knows that 9 out 50 passengers who book a flight do not show up. If 300 people booked a flight , how many will not show up?

Answers

54 people dont show up

In circle F, the measure of ∠AFE is equal to 120° and the measure of arc BD is equal to 20°.What is the measure of ∠C?



100°

40°

60°

50°

Answers

Answer:

40

Step-by-step explanation:

AFE=120 so arc AE is also 120

those 3 angles add up to 180 and 180-120-20=40

The measure of ∠C is 40°.

What is an angle measure?

When two lines or rays intersect at a single point, an angle is created. The vertex is the term for the shared point. An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex.

Angle measure of central angle is equals to measure of intercepted arc.

External angle formed outside a circle,

= Half the difference of the major and minor arc =

Angle measure of AFE

= arc AE = 120°

Thus:

m∠C = 1/2(120 - 40)

m∠C = 40°

So, the angle measure of C is 40°

Therefore, 40° is the measure of ∠C.

To learn more about the angle measure;

brainly.com/question/14684647

#SPJ6

How do I make these points (3,-5)(-5,3) into a point slope form equation that contains the given points

Answers

General\ equation\ for\ line\ in\ slope\ intercept\ form:\n\ny=ax+b\n\nTo\ find\ a\ and\ b\ substitude\ points\ (3,-5),\ (-5,3)\ into\ equation\n\n \left \{ {{-5=3a+b}\ \ \ \ \atop {3=-5a+b\ |*-1}} \right.\n\n \left \{ {{-5=3a+b} \atop {-3=5a-b}} \right. \n+----\n\n-8=8a\ \ \ |:8\na=-1\n\n-5=3\cdot(-1)+b\n-5=-3+b\n-5+3=b\nb=-2\n\ny=-x-2
Steps:
1. First you have to find the slope
3+5= 8 -5-3=-8 Your slope is -1
2. You plug in one of the points into the point slope form
Y1-Y2=m(x-x1)
Y-3=-1(x+5)
Y-3=-1x+-5
3. Then, you add three to each side
Y=-1x+ (-2)

Approximately 4% of silicon wafers produced by a manufacturer have fewer than two large flaws. If Y, the number of flaws per wafer , has a Poisson distribution, what proportion of wafer have more than five large flaws?

Answers

Y ~ Po (λ)

P(Y < 2) = P(Y ≤ 1) = 0.04

Plug into the pdf for Po(λ), and solve for λ

After that, use your answer to find P(Y > 5)

Find the original price of a microwave oven. Discount: 20% Sale Price: $250.00

Answers

Let's take the original price as a
After the discount of 20%, the price is 250.
80/100 * a = 250
a = 250 * 100 / 80
a = 312.5

So original price is 312.5

Whats is a thousode divided by 32

Answers

Answer:

31.25

Step-by-step explanation:

Answer:

31.25 is right.

Step-by-step explanation:
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