Six Second Grade Students Tried Tossing a Ball into a Basket

question 67

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.
$\begin{array}{|c|c|c|}\hline \text { Student } & \begin{array}{c}\text { Successful Tosses } \\\text { Before (out of 10) }\end{array} & \begin{array}{c}\text { Successful Tosses } \\\text { After (out of 10) }\end{array} \\\hline \text { A } & 4 & 5 \\\hline \text { B } & 3 & 3 \\\hline \text { C } & 5 & 1 \\\hline \text { D } & 4 & 5 \\\hline \text { E } & 5 & 1 \\\hline \text { F } & 3 & 3 \\\hline\end{array}$

Ignoring the differences of 0 , the (unsigned) rank of child $C$ is:

• A) 4
• B) 3.5
• C) 3
• D) 2.5

---

Definitions:

Specific Protein

A protein with a unique structure and function, distinguished by its specific genetic coding and role within biological processes.

Chromosome

A structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

Twin Studies

Research that compares the similarities between monozygotic (identical) and dizygotic (fraternal) twins to understand genetic and environmental influences.

Alzheimer's Disease

A progressive neurodegenerative disorder that causes memory loss, impaired cognitive function, and changes in behavior.