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ziro4ka [17]
3 years ago
8

Decide whether the statement below makes sense (or is clearly true) or does not make sense (or is clearly false). Explain. In my

experimental study. l used a sample that was larger than the population. Choose the correct answer below O A. Yes, the statement makes sense. A sample is always larger than the population. O B. No, the statement does not make sense. The sample size should always equal the population size. O C. Yes, the statement makes sense. A sample can be as large as desired. D. No, the statement does not make sense. A sample is a subset of the population and cannot be larger than the population
Mathematics
1 answer:
katen-ka-za [31]3 years ago
7 0

Answer:

Option D:The statement does not make sense. A sample is a subset of the population and cannot be larger than the population.

Step-by-step explanation:

The statement does not make sense. A sample is a subset of the population and cannot be larger than the population.

We measure characteristics of a sample to infere properties of the population. In real cases, the samples are much smaller than the population.

The sample size is calculated in order to achieve the desired level of confidence in the estimation. This confidence usually increases by the root of the sample size.

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Please take a look at the picture. Please write your answer with an explanation.
Ahat [919]

Step-by-step explanation:

what answer is needed ? the result of the calculation ?

I assume this is the case.

remember that regarding the sequence of operations brackets are first, then exponents, then "dot" operations (× and ÷), and only at the very least come the "dash" operations (+ and -).

and that a combination of - + or + - results in -.

14 + 16 ÷ 2³ - (12 + 3²) ÷ 7 + 2 × (-5) =

14 + 16 ÷ 2³ - (12 + 9) ÷ 7 - 2 × 5 =

14 + 16 ÷ 2³ - 21 ÷ 7 - 2 × 5 =

14 + 16 ÷ 8 - 21 ÷ 7 - 2 × 5 =

14 + 2 - 3 - 10 = 3

7 0
2 years ago
you are selling pandesal to raise money for a school field trip. Pandesal with cheese cost 8.00 pesos and ube pandesal cost 9.00
Lera25 [3.4K]

Answer:

Let's define:

C = number of pandesal with cheese that you sell

U = number of pandesal with ube that you sell.

If you sell these numbers of each, the total profit you get is:

C*8.00 pesos + U*9.00 pesos.

And yo want to get at least 180 pesos, then:

C*8.00 pesos + U*9.00 pesos ≥ 180 pesos.

And you also want to sell two of each, then:

C ≥ 2

U ≥2

So the system of inequalities is:

C*8.00 pesos + U*9.00 pesos ≥ 180 pesos.

C ≥ 2

U ≥2

If U is on the x-axis, and C is on the y-axis, then the graph is: (where the region at the right of the vertical line should be shaded)

6 0
3 years ago
What is multiplication in 2 paragraphs
Ivanshal [37]

Four bags with three marbles per bag gives twelve marbles (4 × 3 = 12).

Multiplication can also be thought of as scaling. Here we see 2 being multiplied by 3 using scaling, giving 6 as a result.

Animation for the multiplication 2 × 3 = 6.

4 × 5 = 20. The large rectangle is composed of 20 squares, each having dimensions of 1 by 1.

Area of a cloth 4.5m × 2.5m = 11.25m2; 4½ × 2½ = 11¼

Multiplication (often denoted by the cross symbol "×", by a point "⋅", by juxtaposition, or, on computers, by an asterisk "∗") is one of the four elementary mathematical operations of arithmetic; with the others being addition, subtraction and division.

The multiplication of whole numbers may be thought as a repeated addition; that is, the multiplication of two numbers is equivalent to adding as many copies of one of them, the multiplicand, as the value of the other one, the multiplier. The multiplier can be written first and multiplicand second (though the custom can vary by culture[1]).

{\displaystyle a\times b=\underbrace {b+\cdots +b} _{a}} a\times b=\underbrace {b+\cdots +b} _{a}

For example, 4 multiplied by 3 (often written as {\displaystyle 3\times 4} 3\times 4 and spoken as "3 times 4") can be calculated by adding 3 copies of 4 together:

{\displaystyle 3\times 4=4+4+4=12} 3\times 4=4+4+4=12

Here 3 and 4 are the factors and 12 is the product.

One of the main properties of multiplication is the commutative property: adding 3 copies of 4 gives the same result as adding 4 copies of 3:

{\displaystyle 4\times 3=3+3+3+3=12} 4\times 3=3+3+3+3=12

Thus the designation of multiplier and multiplicand does not affect the result of the multiplication[2].

The multiplication of integers (including negative numbers), rational numbers (fractions) and real numbers is defined by a systematic generalization of this basic definition.

Multiplication can also be visualized as counting objects arranged in a rectangle (for whole numbers) or as finding the area of a rectangle whose sides have given lengths. The area of a rectangle does not depend on which side is measured first, which illustrates the commutative property. The product of two measurements is a new type of measurement, for instance multiplying the lengths of the two sides of a rectangle gives its area, this is the subject of dimensional analysis.

The inverse operation of multiplication is division. For example, since 4 multiplied by 3 equals 12, then 12 divided by 3 equals 4. Multiplication by 3, followed by division by 3, yields the original number (since the division of a number other than 0 by itself equals 1).

Multiplication is also defined for other types of numbers, such as complex numbers, and more abstract constructs, like matrices. For some of these more abstract constructs, the order in which the operands are multiplied together matters. A listing of the many different kinds of products that are used in mathematics is given in the product (mathematics) page.

3 0
3 years ago
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What is the volume of a sphere with a diameter of 49.3cm, rounded to the nearest tenth of a cubic centimeter?
Zanzabum
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an ordered pair where the x and y coordinate are the same lies in the 1st or 3rd quadrant. true, sometimes true or not true?. ex
Zarrin [17]

The quadrants are as follows:

The 1st quadrant has the points which have both x and y positive and the 3rd quadrant has the points which have both x and y negative. If the ordered pair and the same x and y value, if ons is positive, the other also is, and the same for negative.

So, at first we see that there are point where the x and y are the same and that are in the 1st or 3rd quadrant.

However, there is one special case:

When x and y are 0, that is, the ordered pair is (0, 0).

Since this point is the origin, it doesn't lie on any of the quadrants.

Thus, this affirmative is sometimes true. Every point but (0, 0) that have same x and y values are in the 1st or 3rd quadrant except for (0, 0).

7 0
1 year ago
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