Six Second Grade Students Tried Tossing a Ball into a Basket

question 22

Multiple Choice

Six second grade students tried tossing a ball into a basket ten times each. Their teacher then suggested a different way of tossing the ball, and the six students tried again. The number of successful tosses, before and after the teacher's added instruction, are shown below. Find the signed rank of child A's difference. [Recall, differences of zero are not ranked.]

• A) +3
• B) +3.5
• C) +4
• D) +5

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Definitions:

Aquatic Life Zones

Ecological regions within bodies of water, each characterized by distinct habitats and biodiversity such as freshwater zones and marine zones.

Terrestrial Biomes

Terrestrial biomes are large ecosystems found on land, categorized by specific climate conditions, vegetation, and animal life, such as forests, deserts, and tundras.

Temperate Coastal

A climate zone characterized by mild temperatures, located along the coastlines outside of the tropical and polar regions.