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Marrrta [24]
3 years ago
9

Since the sample size is always smaller than the size of the population, the sample meana. must always be smaller than the popul

ation meanb. must be larger than the population meanc. must be equal to the population meand. can be smaller, larger, or equal to the population mean
Mathematics
2 answers:
Alex787 [66]3 years ago
7 0

Answer:

d. can be smaller, larger, or equal to the population mean

Step-by-step explanation:

The mean of the sample will depend upon which values are selected from the population to form the sample.

The sample mean can be any value below, above or equal to the population mean.

However, as more and more samples are taken and their means found, the mean of the sample means will approach the population mean.

Lena [83]3 years ago
6 0

Answer:

<h2>It can be smaller, larger, or equal to the population mean.</h2>

Step-by-step explanation:

We know that the sample size is smaller than the size of the population, because it's a subset that must represent the population.

However, that doesn't mean the sample mean has to be smaller than the population mean, actually this stats can be smaller, equal or larger, it depends on another factors.

Therefore, the right answer is the last choice

<h3>It can be smaller, larger, or equal to the population mean.</h3>
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Alana rode her bicycle 10 miles on Tuesday and 20 miles on Wednesday. What is the mean absolute deviation of this data?
stiks02 [169]

Answer:

5

Step-by-step explanation:

Given that :

Miles ridden in Tuesday = 10

Miles ridden on Wednesday = 20

Sample size, n = 2

Mean :

(10 + 20) / 2

= 30 /2

= 15

Mean absolute deviation :

(|10 - 15| + |20 - 15|) / 2

(5 + 5) / 2

10 / 2

= 5

3 0
2 years ago
How to divide 6,875 by .025
Leokris [45]
Answer= 285000
How to= the number you are dividing by has a decimal move the decimal point all the way to the right counting the number of places you’ve moved it to. Then move the decimal point in the number you’re dividing the same number of places to the right
5 0
3 years ago
PLEASE HELP ME!!! find the coordinates of the circumcenter of ABC. A(0,5), B(-4,5), C(-4,-3)
blondinia [14]
If you sketch the triangle you will see it is a right triangle with B being the vertex for the right angle. the orthocenter is the intercept of the three altitudes. for a right triangle, the orthocenter is the vertex where the right angle is.so the answer for this question is (-4,5)

6 0
3 years ago
An inground swimming pool contains 2. 3 times 10 Superscript 4 units of water. Which unit of measure was used? teaspoons cubic c
sineoko [7]

The unit of measurement that is used for the water in the swimming pool is 2.3×10⁴ gallons.

<h3>What is the Units conversion?</h3>

Unit conversion is a way of converting some common units into another without changing their real value. for, example, 1 centimetre is equal to 10 mm,

though the real measurement is still the same the units and numerical values have been changed.

As it is given that the volume of the pool or the amount of water that is in the pool is equal to 2.3×10⁴ units.

We know that an average swimming pool has a volume of water that is in gallons, therefore, the unit of water that will be filled in the swimming pool will be equal to 2.3×10⁴ gallons.

Hence, the unit of measurement that is used for the water in the swimming pool is 2.3×10⁴ gallons.

Learn more about Units conversion:

brainly.com/question/4736731

5 0
2 years ago
Which type of triangle is formed with the points A(1, 7), B(-2, 2), and C(4, 2) as its vertices?
Dafna1 [17]
We will have to use the distance formula in order to determine the lengths of each side of the triangle.

Distance formula: \sqrt{(x_{2} - x_{1})^{2} + (y_{2} - y_{1})^{2} }

Let's calculate AB first:
A (1, 7) and B (-2, 2)
A: x1 = 1 and y1 = 7
B: x2 = -2 and y2 = 2

so
\sqrt{(-2 - 1)^{2} + (2 - 7)^{2} }
\sqrt{(-3)^{2} + (-5)^{2} }
\sqrt{9 + 25 }
AB = \sqrt{34} or (rounded to the nearest tenth) ≈ 5.8

Now let's do BC:
B: x1 = -2 and y1 = 2
C: x2 = 4 and y2 = 2

So
\sqrt{(4 - -2)^{2} + (2 - 2)^{2} }
\sqrt{(6)^{2} + (0)^{2} }
BC = \sqrt{36 } or 6

Now let's do CA
C: x1 = 4 and y1 = 2
A: x2 = 1 and y2 = 7

So
\sqrt{(1 - 4)^{2} + (7 - 2)^{2} }
\sqrt{(-3)^{2} + (5)^{2} }
\sqrt{9 + 25}
CA = \sqrt{34} or (rounded to the nearest tenth) ≈ 5.8

So let's recap:

AB ≈ 5.8
BC = 6
CA ≈ 5.8

So AB and AC are the same length while BC is .2 units longer which means this is an isosceles triangle.

4 0
3 years ago
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