Use the empirical probability formula to solve the exercise. Express the answer as a fraction. Then express the probability as a decimal, rounded to the nearest thousandth, if necessary. In 1999 the stock market took big swings up and down. A survey of 973 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 portfolio daily? How frequently? Response Daily Weekly Monthly Couple times a year Don't track OA. OB. O C. 133 973' 269 973 0.137 : 0.276 227 973' 0.233 227 269 286 133 58

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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D. 286/973; 0.294
Use the empirical probability formula to solve the exercise. Express the answer as a fraction. Then express the probability as a decimal, rounded to the nearest thousandth, if
necessary.
In 1999 the stock market took big swings up and down. A survey of 973 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 portfolio daily?
How frequently?
Response
Daily
Weekly
Monthly
Couple times a year
Don't track
OA.
O B.
O C.
133
973
269
973'
0.137
227
973'
0.276
0.233
227
269
286
133
58
CO
Transcribed Image Text:Use the empirical probability formula to solve the exercise. Express the answer as a fraction. Then express the probability as a decimal, rounded to the nearest thousandth, if necessary. In 1999 the stock market took big swings up and down. A survey of 973 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 portfolio daily? How frequently? Response Daily Weekly Monthly Couple times a year Don't track OA. O B. O C. 133 973 269 973' 0.137 227 973' 0.276 0.233 227 269 286 133 58 CO
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