Instruction 2.1
An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance. A representative from a local insurance agency selected a random sample of insured drivers and recorded, X, the number of claims each made in the last three years, with the following results.
$$\begin{array} { | l | l | }
\hline X & f \
\hline 1 & 14 \
\hline 2 & 18 \
\hline 3 & 12 \
\hline 4 & 5 \
\hline 5 & 1 \
\hline
\end{array}$$
-Referring to Instruction 2.1,how many drivers are represented in the sample?
A) 18
B) 50
C) 5
D) 15

Question

Instruction 2.1
An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance. A representative from a local insurance agency selected a random sample of insured drivers and recorded, X, the number of claims each made in the last three years, with the following results.
 $$\begin{array} { | l | l | } 
\hline X & f \
\hline 1 & 14 \
\hline 2 & 18 \
\hline 3 & 12 \
\hline 4 & 5 \
\hline 5 & 1 \
\hline
\end{array}$$
-Referring to Instruction 2.1,how many drivers are represented in the sample?
A) 18
B) 50
C) 5
D) 15

Quizplus · Accepted Answer

To find the total number of drivers represented in the sample, you add up the frequencies (f) for each number of claims (X). That is, 14 + 18 + 12 + 5 + 1 = 50.

Instruction 2 Xf1142183124551\begin{array} { | l | l | } \hline X & f \\\hline 1 & 14 \\\hline 2 & 18 \\\hline 3 & 12 \\\hline 4 & 5 \\\hline 5 & 1 \\\hline\end{array}X12345​f14181251​​

Instruction 2 $\begin{array} { | l | l | } \hline X & f \\\hline 1 & 14 \\\hline 2 & 18 \\\hline 3 & 12 \\\hline 4 & 5 \\\hline 5 & 1 \\\hline\end{array}$