Select the appropriate descriptions of the correlation coefficient (r). r describes the clustering of the points around a line, relative to the SDs.
r says how the average value of y depends on x.
r determines the accuracy of the regression predictions, through the formula for r. m.s. error.
All of the above are accurate descriptions of the uses of r.

what does x eaqual

step-by-step explanation:

two data sets with the same median will not have the same varaibility

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet