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Assume the weight of adult males is normally distributed. The following weight of adult males in...

Assume the weight of adult males is normally distributed. The following weight of adult males in lbs taken in a recent study.

150 152 154 155 156 158 158 160 161 163 164 165 165 166 166 166 167 167 168 169 171 172 174 174 176 177 178 179 179 181 183

Assume the standard deviation for weight is 10 lbs.     

e. Roughly 25% of men would be below what weight?

f. A recent boat seat is graded for between 160 and 175 lbs. What percentage of males would be able to use this boat seat?

g. A go-kart seat is graded for between 130 and 160 lbs. What percentage of males would be able to use this boat seat?

Math   Statistics-And-Probability   
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