Chapter 5: Q4 (page 209)

Notation of 0+ Using the same survey from Exercise 3, the probability of randomly selecting 30 of the 1009 consumers and getting exactly 24 who are comfortable with the drones is represented as 0+. What does 0+ indicate? Does 0+ indicate that it is impossible to get exactly 24 consumers who are comfortable with the drones?

Expert verified

0+ indicates that it is unlikely that out of 30 consumers selected, exactly 24 consumers are comfortable with the drones,

0+ does not indicate that it is impossible to get exactly 24 consumers who are comfortable with the drones.

Step by step solution

The probability ofselecting 30 of 1009 consumers and getting exactly 24 who are comfortable with the drones is represented as 0+.

If a probability value is represented as 0+, it means that the probability is very close to 0, and it is highly unlikely that the event will happen.

Thus, it can be said that it is unlikely that out of 30 consumers selected, exactly 24 consumers are comfortable with the drones,

0+ does not indicate that the event is impossible to occur. It says that the event is highly unlikely to take place.

Therefore, 0+ does not indicate that it is impossible to get exactly 24 consumers who are comfortable with the drones.

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