Question: Use the empirical probability formula to solve the exercise. Express the answer as a fraction. Then express the probability as adecimal, rounded to the nearestthousandth,

Use the empirical probability formula to solve the exercise. Express the answer as a fraction. Then express the probability as adecimal, rounded to the nearestthousandth, if necessary.

In 1999 the stock market took big swings up and down. A survey of 994 adult investors asked how often they tracked their portfolio. The table shows the investor responses. What is the probability that an adult investor tracks his or her portfoliodaily?

Howfrequently? Response

Daily 221

Weekly 286

Monthly 273

Coupletimesayear149

Don'ttrack 65

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