Answer:
The answer is (d)= Selecting a simple random sample from each of a given number of strata formed from the elements in the population.
Stratified random sampling is a sampling method where the population has a number of distinct categories. The population can be organized into separate strata and each stratum is then sampled as an independent sub-population out of which individual elements can be randomly selected. In this case, each unit in a stratum, that is, each element in a group has the chance of being selected into the sample and there is adequate representation of minority sub-groups. With Stratified sampling, the best result occurs when elements within strata are internally homogeneous.
Step-by-step explanation:
First you need to figure out what 5.4% of 3600 is. So take 3,600 x 0.054. This equals 194.4. You then want to add this to 3,600. This will equal 3,794.4. You then want to do the process again, so the interest this year comes from 3,794.4 x 0.054. This equals about 204.9 (if you can it is 204.8976). Then you want to add that back into 3,794.4 so it will equal about 4,000 (or 3,999.2976) Well now this is a long process, but its the one way I remember how to do it.
Answer:
b
Step-by-step explanation:
Because y is squared, or, actually, because (y + 6) is squared, we know immediately that the graph is horizontal. Because both (y + 6)^2 and (x - 7) are positive, we know that the graph opens to the right. (b) is correct.
Answer:
no solutions
Step-by-step explanation:
6x² - 4x + 3 = 0
Therefore, a = 6, b = -4 and c = 4
Discriminant = b² - 4ac
⇒ (-4)² - (4 x 6 x 4) = 16 - 96 = -80
Therefore, b² - 4ac < 0 so no solutions to the equation
The answer for your question it is C
