3 years ago

Choose ordered pair which is a solution of the inequality x+y≥0

1 answer:

7 0

You haven't shared the list of choices, so there'snoway to choose the right one.

Each ordered pair is a set of 2 numbers. The first one is 'x', the second one is 'y'.

For each pair, add the two numbers, and see whether the sum is zero or more.
If it is, then that pair is a solution to the inequality. There may be more than one.

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cestrela7 [59]

Answer:

Step-by-step explanation:

Given that :

μ1 = 39420 ; σ1 = 1659 ; s1 = 12

μ2 = 30215 ; σ2 = 4116 ; s2 = 26

df1 = 12 - 1 = 11

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98 % confidence interval of the difference in sample means :

Pooled Variance :

S²p = ((df1 * s1²) + (df2 * s2²)) / (df1 + df2)

((11×1659^2)+(25×4116^2))÷(11+25) = 12605874.75

Standard Error :

√(S²p/n1) + (S²p/n2)

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Step-by-step explanation:

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