Question

anal

QUESTION kaly softhe data from 25 mot en indicates that an infant's birth eight (g kg increase in a mother's weight, the infant's birth weight increases by be estimated by s mother's weight (Cke).., using the regression equation y - 31x 1501. For every y can be estimated by a ther's weight (kg). x using the re ress on equation y 1501:31 O 31, 1 0 1,3 O 31, 1501

Answer 1

1)

The regression equation is

      y=31 x + 1501

y is the infant’s birth weight (g)

                        x is the mother’s weight (kg)

For every 1 Kg increase in a mother’s weight, the infant’s birth weight increases by 31 g.

Hence third option 1; 31 is correct

2)

The scatter plot displays the best graphic display of the amount of nitrogen oxide (NO) explained by the amount of carbon monoxide (CO) emissions in million metric tons over a ten year period in United States.

The scatter plot is shown below,

390 380 370 E 360 350 340 330 5600 5700 5800 5900 6000 6100 CO emissions in million metric tons