If the standard deviation of a normally distributed population is 20.0 and we take a sample of size 4, then the standard error of the mean is

Even if a person is in very good shape, applying to be a police officer requires commitment to fitness. applicants must pass a physical fitness test. in order to prepare for the test, janet purchases an activity tracker to court her steps. her goal is to walk 10,000 steps each day. she measures heard average step length to be 30 inches. play janet runs, her average steps length increases to 36 in. how many steps would she have to take to run 1 mile 50280 round to the nearest step

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

Pls never taught i’m really confused and i rlly need