Select "Spin" to start the spinner.

90-Day Weather Forecast
\begin{tabular}{|c|c|c|}
\hline
Result & \begin{tabular}{c}
Predicted \\
Frequency
\end{tabular} & \begin{tabular}{c}
Observed \\
Frequency
\end{tabular} \\
\hline
Wind & 9 & 0 \\
\hline
Rain & 18 & 0 \\
\hline
Clouds & 27 & 0 \\
\hline
Sunshine & 36 & 0 \\
\hline
Total & 90 & 0 \\
\hline
\end{tabular}

Spin the spinner 90 times to simulate the 90-day weather forecast. Which type of weather has the lowest observed frequency?

A. Wind
B. Rain
C. Clouds
D. Sunshine



Answer :

Let's work through the problem step by step.

We have four types of weather outcomes: Wind, Rain, Clouds, and Sunshine. Each type of weather has a predicted frequency for a 90-day period as follows:

- Wind: 9 times
- Rain: 18 times
- Clouds: 27 times
- Sunshine: 36 times

We need to simulate 90 spins of a spinner that lands on these weather outcomes weighted by their predicted frequencies. After simulating these 90 spins, we observe the actual number of times each weather outcome occurred.

The observed frequencies from the simulation are:

- Wind: 4 times
- Rain: 18 times
- Clouds: 31 times
- Sunshine: 37 times

Let's place these observed frequencies in our table:

[tex]\[ \begin{tabular}{|c|c|c|} \hline Result & Predicted Frequency & Observed Frequency \\ \hline Wind & 9 & 4 \\ \hline Rain & 18 & 18 \\ \hline Clouds & 27 & 31 \\ \hline Sunshine & 36 & 37 \\ \hline Total & 90 & 90 \\ \hline \end{tabular} \][/tex]

From the observed frequencies:

- Wind occurred 4 times.
- Rain occurred 18 times.
- Clouds occurred 31 times.
- Sunshine occurred 37 times.

The weather type with the lowest observed frequency is Wind, with an observed frequency of 4.

Therefore, the type of weather with the lowest observed frequency is Wind.

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