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Mathematics, 17.08.2021 21:30 spezzatti221
When testing the IQ of a group of adults, a researcher noticed that the correlation between IQ and age was negative. Is this a guarantee that all younger people have higher IQs than older people
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Mathematics, 22.06.2019 01:20
1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed
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Mathematics, 22.06.2019 03:00
Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.
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