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Anna [14]
2 years ago
12

A good way to avoid bias when collecting samples is to ___.

Mathematics
1 answer:
Dafna1 [17]2 years ago
6 0

Probably the most effective method researchers use to prevent sampling bias is through simple random sampling where samples are selected strictly by chance.

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I dropped my sandwich the pool once
kykrilka [37]

Answer:

cool i dropped my little brother in the pool once

Step-by-step explanation:

i sliped and dropped him

5 0
2 years ago
Factor the expression: 14x + 21y – 7z
lozanna [386]

Answer:

7 ( 2x + 3y - z)

Step-by-step explanation:

To factor this expression, you need to find the GCF, which is 7.

7 ( 2x + 3y - z)

7 0
3 years ago
Read 2 more answers
charity is four times as old as her daughter. she is also six years younger than her husband. The sum of their ages ten years to
Pachacha [2.7K]

Answer:

36years

Step-by-step explanation:

Let charity present age be x

Charity daughter present age be y

Charity husband present age be z

If the sum of their ages ten years to come is 117, then;

10+x+10+y+10+z = 117

30+x+y+z = 117

x+y+z = 87 ... 1

If charity is four times as old as her daughter, then;

x = 4y

y = x/4 ... 2

If she is also six years younger than her husband, then;

x = z- 6

z = x+6 .. 3

Substitute 2 and 3 into 1;

x + x/4 + (x+6) = 87

Multiply through by 4

4x + x + 4(x+6) = 4(87)

5x+4x+24 = 348

9x = 348 - 24

9x = 324

x = 324/9

x = 36

hence Charity is 36years old today

5 0
2 years ago
Find the missing side of a triangle with leg length 10 yards and Hypotenuse 26 yards?
Elan Coil [88]

Answer:

The answer is 24 yards.

Step-by-step explanation:

a² + b² = c²

10² + b² = 26²

100 + b = 676

676 - 100 = 576

√576 = 24 yards

7 0
3 years ago
I need help fast hurry up
suter [353]
It is B my friend...
8 0
2 years ago
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