What does it mean to say that two variables are negatively correlated?

The larger the land of a country, the higher its population tends to be.

The smaller the land of a country, the higher its population tends to be.

There is no relationship between a country's land area and its population.

A larger land area automatically means a higher population.

The first option is the correct answer: The larger the land of a country, the higher its population tends to be.

To say that two variables are negatively correlated means that as one variable increases, the other variable tends to decrease. In this scenario, the variables being compared are land area and population. So, if two variables are negatively correlated, it means that as the land area of a country decreases, its population tends to increase.

What is an outlier?

a data point that falls outside of a general trend on a graph.

a data point that perfectly embodies the relationship between two variables.

a way of determining how two variables are related to each other.

a data point that does not fit into a bar graph.

The correct answer is: a data point that falls outside of a general trend on a graph.

An outlier is a data point that significantly deviates from the overall pattern or trend observed in a dataset. It is an observation that lies far away from the other data points, often indicating it is unusual or anomalous compared to the rest of the data. Outliers can have a significant impact on statistical analyses and should be carefully examined to understand their cause and decide whether to include or exclude them from further analysis.

Some animals are omnivores, which means that the food comes from plant and animal sources. Which word from the sentence is an example of domain-specific language?

The word "omnivores" is an example of domain-specific language in this sentence.

Domain-specific language refers to specialized terminology or jargon used within a specific field or domain of knowledge. In this case, "omnivores" is a term commonly used in the field of biology to describe animals that have the ability to consume both plant and animal sources as their food.

The mechanic said the car needed some brake things replaced.

Which words can replace the imprecise phrase some brake things domain-specific language?

The words that can be used to replace the imprecise phrase "some brake things" with domain-specific language are:

1. Brake pads
2. Brake calipers
3. Brake rotors
4. Brake discs
5. Brake lines
6. Brake fluid
7. Brake shoes
8. Brake drums

These terms are commonly used by mechanics to refer to specific components of a car's braking system.

Kendra uses a meter stick to determine that the dimensions are 1.25 x 10^-8 meters wide by 2.5 x 10^-6 meters long. Use scientific notation to write the dimensions in millimeters.

To convert the dimensions from meters to millimeters, we need to multiply by a conversion factor of 1000, since there are 1000 millimeters in 1 meter.

Given the dimensions:
Width: 1.25 x 10^-8 meters
Length: 2.5 x 10^-6 meters

To convert the width to millimeters, we can use the conversion factor:
1.25 x 10^-8 meters * 1000 = 1.25 x 10^-8 * 1000 = 1.25 x 10^-8 * 10^3 = 1.25 x 10^-8+3 = 1.25 x 10^-5 millimeters

To convert the length to millimeters, we apply the same logic:
2.5 x 10^-6 meters * 1000 = 2.5 x 10^-6 * 1000 = 2.5 x 10^-6 * 10^3 = 2.5 x 10^-6+3 = 2.5 x 10^-3 millimeters

Therefore, the dimensions in millimeters are:
Width: 1.25 x 10^-5 millimeters
Length: 2.5 x 10^-3 millimeters

Jim's music library on his phone holds 1,900 songs. The songs have an average time of 3.5 minutes. Use scientific notation to find the total number of seconds the playlist will play. Express the answer to the exact decimal place.