Question

1. determine the probability of spinning a d as a fraction and percentage.
2. if you spin the spinner 50 times, how many times would you expect to land on d?

Explanation:

Problem 9

Step1: Count total and D sections

Total sections: 8, D sections: 4.

Step2: Calculate probability (fraction)

Probability = $\frac{\text{Number of D}}{\text{Total}} = \frac{4}{8} = \frac{1}{2}$.

Step3: Convert to percentage

Percentage = $\frac{1}{2} \times 100\% = 50\%$.

Step1: Use probability from Q9

Probability of D is $\frac{1}{2}$.

Step2: Expected value = trials × probability

Expected = $50 \times \frac{1}{2} = 25$.

Answer:

Fraction: $\frac{1}{2}$, Percentage: $50\%$

Problem 10