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astronomers are Intrested in the recensserial velocity of galaxies, that Is the moving Speed they are moving away from the mulvey Way the accompany label

astronomers are Intrested in the recensserial velocity of galaxies, that Is the moving Speed they are moving away from the mulvey Way the accompany label contains the recessional Velocities for sample of galaxies, measued in Inmysec negative velocity Indicate the galaxy is moving towards us. Calculate the mean median 39, 29,-13,-7,-22,20,29,20,30,40

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