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3 years ago

Are the population means different? yes or no explain

Mathematics

1 answer:

Dima020 [189]3 years ago

5 0

Answer:

The comparison of two population means is very common. A difference between the two samples depends on both the means and the standard deviations. Very different means can occur by chance if there is great variation among the individual samples.

Step-by-step explanation:

This answer involves both Yes and No

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Add sides 1

$4z + 2 + 1 = 10z - 1 + 1$

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Divide sides by 6

$\frac{6z}{6} = \frac{3}{6} \\$

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$3y = y + 3$

Subtract sides y

$- y + 3y = - y + y + 3$

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Divide sides by 2

$\frac{2y}{2} = \frac{3}{2} \\$

$y = \frac{3}{2} \\$

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Thus the correct answer is :

$a) \: y = \frac{3}{2} \: , \: z = \frac{1}{2} \\$

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