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Question
you are conducting an experiment. the following statement is your hypothesis: the average number of deformed frogs in ponds that are polluted is greater than the average number of deformed frogs in non - polluted ponds.
analyze the data below. what conclusion can you draw from this data?
| polluted pond | number of deformed frogs | non - polluted pond | number of deformed frogs |
|---|---|---|---|
| 2 | 23 | 2 | 25 |
| 3 | 25 | 3 | 30 |
| 4 | 26 | 4 | 16 |
| 5 | 21 | 5 | 20 |
| average: | 22.8 | average: | 23 |
the hypothesis is true, the average number of deformed frogs in the polluted ponds and non - polluted ponds is almost the same.
a
the hypothesis is true, the polluted ponds have more deformed frogs than the non - polluted ponds.
b
Step1: Identify the averages
The average number of deformed frogs in polluted ponds is 22.8. The average number of deformed frogs in non - polluted ponds is 23.
Step2: Compare the averages
Since 22.8 < 23, the average number of deformed frogs in non - polluted ponds is greater than the average number of deformed frogs in polluted ponds. This means the hypothesis is false.
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Neither a nor b is correct as the data shows the average number of deformed frogs in non - polluted ponds is greater than in polluted ponds, so the hypothesis is false.