Data collected about wildflowers from a plot in a field found the following distribution of flower color:

Question

Blue flowers 120
Red flowers 100
Yellow flowers     180
What is the frequency of red flowers in the population?

(1 point)
Responses

0.25
0.25

0.20
0.20

0.45
0.45

0.30
0.30

Answer 1

To find the frequency of red flowers in the population, we need to calculate the total number of flowers and then determine the proportion of red flowers.

First, let's sum the total number of flowers:

• Blue flowers: 120
• Red flowers: 100
• Yellow flowers: 180

Total number of flowers = 120 + 100 + 180 = 400

Next, we calculate the frequency of the red flowers:

Frequency of red flowers = (Number of red flowers) / (Total number of flowers) Frequency of red flowers = 100 / 400 = 0.25

Thus, the frequency of red flowers in the population is 0.25.

Answer 2

Scientists measure the leaf sizes of a species of plant in various areas and categorize them based on how much sunlight is received. Each category has 100
plants measured.

Shaded: 85
plants have leaves smaller than 6 cm2

Partial sun: 50
plants have leaves smaller than 6 cm2

Full sun: 15
plants have leaves smaller than 6 cm2


Which statement best describes the relationship between sunlight exposure and this plant species?

(1 point)
Responses

Leaf size is random and not related to sun exposure.
Leaf size is random and not related to sun exposure.

Plants in shaded areas have bigger leaves than those in full sun.
Plants in shaded areas have bigger leaves than those in full sun.

Sunlight exposure does not influence leaf size.
Sunlight exposure does not influence leaf size.

Plants that had more sunlight tended to have larger leaves.

Answer 3

To determine the relationship between sunlight exposure and leaf size based on the data provided, we can analyze the numbers:

• In shaded areas, 85 out of 100 plants have leaves smaller than 6 cm².
• In partial sun, 50 out of 100 plants have leaves smaller than 6 cm².
• In full sun, 15 out of 100 plants have leaves smaller than 6 cm².

From this data, we can observe that:

• A large majority of plants in shaded areas have small leaves (85%).
• A significant number of plants in partial sun also have small leaves (50%).
• The smallest percentage of plants in full sun have small leaves (15%).

This suggests that as sunlight exposure increases, the number of plants with smaller leaves decreases, indicating a relationship between sunlight exposure and leaf size.

The best statement that describes this relationship is:

"Plants that had more sunlight tended to have larger leaves."

Answer 4

Observations of 150 fish were made in varying regions of a coral reef. The color vibrancy was categorized based on their intensity. The following data was collected:

Cold Water: 130 muted coloration
Moderate Water: 60 muted coloration
Warm Water: 20 muted coloration

What claim is supported by this data?

(1 point)
Responses

The color of fish is random and not influenced by temperature.
The color of fish is random and not influenced by temperature.

The color of fish is consistent and not affected by temperature.
The color of fish is consistent and not affected by temperature.

Fish have more vibrant colors in colder water.
Fish have more vibrant colors in colder water.

Fish have more vibrant colors in warmer water.
Fish have more vibrant colors in warmer water.
Remaining Attempt

Answer 5

To evaluate the influence of water temperature on the color vibrancy of fish based on the provided data:

• In Cold Water, there are 130 fish with muted coloration.
• In Moderate Water, there are 60 fish with muted coloration.
• In Warm Water, there are only 20 fish with muted coloration.

From these observations, we can infer that the number of fish with muted coloration decreases as the water temperature increases. This suggests that warmer water is associated with more vibrant coloration in fish.

Thus, the claim that is supported by this data is:

"Fish have more vibrant colors in warmer water."