The following data represents the weight in pounds of a sample of young boys that are...
The following data represents the weight in pounds of a sample of young boys that are between the ages of 13 years and 15 years
126 231 132 126 128 128 131 136 140 226 156 149 115 117 138 133 131 134
- Make a frequency table that represents this data
- Calculate the mean an the median
- Calculate standard deviation
- Create intervals
- Interpret the result
Homework Answers
ANSWER:
The following data represents the weight in pounds of a sample of young boys that are between the ages of 13 years and 15 years.
115,117,126,126,128,128,131,132,133,134,136,138,140,149,156,226,231.
| Data | Frequency |
| 115 | 1 |
| 117 | 1 |
| 126 | 2 |
| 128 | 1 |
| 131 | 2 |
| 132 | 1 |
| 133 | 1 |
| 134 | 1 |
| 136 | 1 |
| 138 | 1 |
| 140 | 1 |
| 149 | 1 |
| 156 | 1 |
| 226 | 1 |
| 231 | 1 |
Mean=(sum of the items)/(no.of items)=2409/17=144.0588
Median=133
standard deviation
=33.3119
Interval=
=[144.0588-33.3119,144.0588+33.3119]
Interval=[110.7469.177.3707].
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