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Over the entire six years that students attend an Ohio elementary school,they are absent,on average,28 days due to influenza.Assume that the standard deviation over this time period is σ = 9 days.Upon graduation from elementary school,a random sample of 36 students is taken and asked how many days of school they missed due to influenza.The probability that the sample mean is less than 30 school days is _______.
Boredom
A state of weariness and dissatisfaction arising from a lack of interest or engagement.
Depression
A state of mental distress typified by ongoing depressive mood or the inability to find pleasure in activities, severely disrupting daily life performance.
Anxiety
An emotion of concern, apprehension, or discomfort, usually in anticipation of a forthcoming event or regarding something whose result is not yet determined.
Multidimensional
Characterizing something that has or pertains to multiple aspects, factors, or dimensions.
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