How is the speed of particles related to the different states of matter

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

Asher cycles 12 miles in 16 hours. what is his speed?

The mini-refrigerator fire was most likely caused by what type of wiring?