What does an h-r diagram relate a star's temperature to? a. the amount of heat created by the star c. the type of star b. the elements the star contains d. the star's absolute magnitude

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

Anybody wanna ? (picture included? )

Which branches of natural science include the study of an organism that lived 10 million years ago