You want to estimate the portion of time that your favorite radio station is pla

ID: 3272519 • Letter: Y

Question

You want to estimate the portion of time that your favorite radio station is playing music. Which of the followings are a independent trials?

-Turn on the radio and record if it is playing music or not. Repeat this every 15 seconds for the next 3 hours.

-Turn on the radio and record if it is playing music or not. Do the same for the next 10 days, at the same time.

-Turn on the radio and record if it is playing music or not. repeat this every 10 minutes for 24 hours.

-Select a random time in a (24-hour) day; and turn on the radio and record if it is playing music or not. Repeat this for next 10 days.

Ans:

The correct option is:

Turn on the radio and record if it is playing music or not. repeat this every 10 minutes for 24 hours.

(trails are independent )

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