Instruction 18-3
a Political Pollster Randomly Selects a Sample of 100

question 102

Multiple Choice

Instruction 18-3
A political pollster randomly selects a sample of 100 voters each day for eight successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favouring the incumbent candidate is too erratic.
$$\begin{array} { | c | c | } \hline \begin{array} { c } \text { Sample } \\\text { (Day) }\end{array} & \begin{array} { c } \text { Number Favouring } \\\text { Incumbent Candidate }\end{array} \\\hline 1 & 57 \\\hline 2 & 57 \\\hline 3 & 53 \\\hline 4 & 51 \\\hline 5 & 55 \\\hline 6 & 60 \\\hline 7 & 56 \\\hline 8 & 59 \\\hline\end{array}$$
-Referring to Instruction 18-3,which expression best characterises the p chart?

• A) Individual outliers
• B) In control
• C) Decreasing trend
• D) Increasing trend

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Definitions:

Genetic Imbalance

A condition where there is a discrepancy in the number or structure of chromosomes, often leading to developmental issues or diseases.

Amniocentesis

A medical procedure used in prenatal diagnosis of chromosomal abnormalities and fetal infections, involving the extraction of amniotic fluid using a syringe.

Chorionic Villus Sampling

A prenatal test in which a sample of chorionic villi is taken from the placenta for genetic testing.

Gene Therapy

A medical technique that involves modifying or repairing defective genes to treat or prevent disease.