Mathematics, 19.05.2020 03:13 hannahkharel2
The ages of participants in a bond pile are normally distributed, with a standard deviation of 10 years. 34% are 40-50 years old and 13.5% are 20 and 30 years old. If there were 160 participants in the bonspiel, how many were between the ages of 20 and 60??
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