Question

For a science fair project, Cora tracked the temperature each day. Temperature reading (°C) Number of temperature readings 6 2 22 3 25 1 35 1 2 42 1 X is the temperature that a randomly chosen temperature reading was. What is the expected value of X? Write your answer as a decimal.

Answer 1

We get that the expected temperature is

`\begin{gathered} E(T)=6\cdot(2)/(10)+22\cdot(3)/(10)+25\cdot(1)/(10)+35\cdot(1)/(10)+41\cdot(2)/(10)+42\cdot(1)/(10) \\ E(T)=26.2 \end{gathered}`