Data from a population of 100 5th grade students is collected. Five students playing dodge ball outside at recess are asked if they prefer playing outdoors or indoors.
Which of the following is true of the sample?
The question is random.
It is a biased sample.
The sample is random.
The sample is not large enough.

(co 3) the times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 9.4 minutes. a random sample of 25 customers has a mean of 36.1 minutes or less. would this outcome be considered unusual, so that the store should reconsider its displays? no, the probability of this outcome at 0.035, would be considered usual, so there is no problem yes, the probability of this outcome at 0.035, would be considered unusual, so the display should be redone no the probability of this outcome at 0.359 would be considered usual, so there is no problem yes, the probability of this outcome at 0.965 would be considered unusual, so the display should be redone