Question

1. sam tossed a coin 10 times and heads turned up nine times.

a) express the experimental probability of turning up heads as a percent.

Explanation:

Step1: Calculate the experimental probability

Experimental probability formula: \(P=\frac{\text{Number of successful trials}}{\text{Total number of trials}}\).
Here, number of successful trials (heads) \(n = 9\), total number of trials \(N=10\). So \(P=\frac{9}{10}\).

Step2: Convert the fraction to a percentage

To convert a fraction to a percentage, use the formula \(P(\text{percentage})=\frac{9}{10}\times100\%\).
\(\frac{9}{10}\times100\%=(9\times10)\% = 90\%\)

Answer:

\(90\%\)