Eris is about 68 AU away from the Sun. Calculate the time it takes for the Sun’s light to reach Eris in minutes.

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

True or false graphs must include scales that increase by the same amount

Which of the following are guidelines to follow for obtaining accurate observations