Help me 1-6 with an explanation for a brainliest.

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

8 0

Answer:

Step-by-step explanation:

1. 5

2. -9

3. -4

4. 4 > .25

5. 0.142 < 7

6. -8 = -8

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To select a __________ random sample, first classify the population into groups of similar individuals, then choose a separate S

Lina20 [59]

Answer:

To select a stratified random sample, first classify the population into groups of similar individuals, then choose a separate SRS in each group and combine these SRS to form the full sample

Step-by-step explanation:

Stratified random sampling involved dividing the population into small groups of similar individuals (called strata) and then from among those groups, a stratified random sample is selected and then, all these samples are combined to form the full sample. Hence, the missing word in this sentence is stratified.

8 0

3 years ago

Use substitution to solve the following system of equations. 2x + 4y = 12 AND x=y - 3

Kamila [148]

Answer:

The solution is (0, 3)

Step-by-step explanation:

First, reduce 2x + 4y = 12 to x + 2y = 6, for easier calculations.

Next, substitute y - 3 for x in the other equation:

y - 3 + 2y = 6, or

3y = 9

Then y = 3. Since x = y - 3 in general, x = 3 - 3 = 0 when y = 3.