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zheka24 [161]
3 years ago
15

A random sample is a sample drawn in such a way that

Mathematics
1 answer:
AysviL [449]3 years ago
5 0

Answer:

A random sample is a sample drawn in such a way that is random and does not favor another party. For example if a bakery owner is conducting a survey on what his customers would like to add to the menu, it would not be a random sample if he only asked customers 50 years old and older. Instead he would have to ask all ages for it to be accurate.

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A hot air balloon descends from an altitude of 2,000 feet at a constant rate of 90 feet per minute. Write a linear function in t
serg [7]

Answer:

the hot air balloon is hotter than me

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The IQ test is designed such that the scores on it are normally distributed with a mean of 100 and a standard deviation of 15. I
kozerog [31]

Answer:

130

Step-by-step explanation:

A standard deviation is 15, so 2 standard deviation is 30, 2 standard deviations above 100 is 100+30=130

5 0
2 years ago
When the coordinates 1 1 7 3 8 0 and 2 − 2 are joined which shape is formed 5 points group of answer choices trapezoid rectang
Hatshy [7]

the coordinates (1,1), (7,3), (8,0) and (2,-2) are joined which shape is formed as Square

When the coordinates (1,1), (7,3), (8,0) and (2,-2) are joined, a square is formed. The sides are equal length and the angles are all 90 degrees.The coordinates (1,1), (7,3), (8,0) and (2,-2) are points on a two-dimensional plane. When the points are connected, a square is formed. A square is a four sided shape with four 90 degree angles and four equal length sides. The length of each side can be calculated by finding the distance between the two points. For example, the distance between (1,1) and (7,3) is 6 units. Therefore, the length of each side of the square is 6 units.

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5 0
1 year ago
Solve the proportion: 5/x+7=3/x+3
Allushta [10]

Answer:

x=3

Step-by-step explanation:

cross multiply

5(x+3)=3(x+7)

5x+15=3x+21

5x+15-3x=3x+21-3x

2x+15=21

2x+15-15=21-15

2x=6

x=3

7 0
3 years ago
Identify the range of the function shown in the graph.​
Kitty [74]

Answer:           The answer is all real numbers

Step-by-step explanation:

This is the answer because the line goes on infinitely and will pass through all of the numbers (negative, positive). Its not y \geq \\ 0 because it passes through 0 when the line goes through x (side to side) axis.

6 0
2 years ago
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