Francis was recording plant heights for an experiment. each time that she took a measurement, she wrote it down. then, she measured the plant again and compared the new measurement to the one that she had recorded in her notebook. what was francis trying to do? 1)revise her hypothesis. 2) check her memory. 3) make the data more valid. 4) form a conclusion

I think the correct answer from the choices listed above is option 3. Francis was making the data more valid by making more trials. This will minimize errors and the other factors that might contribute to the errors. Also, by making different measurement will make you see if the readings are precise.

there are number of topics. you can pick any one of these topics: