En cada caso, ¿esperas que haya una relación entre las variables? Esto es, ¿crees que un cambio en una variable va acompañado de un cambio en la otra variable? ¿Cómo esperas que cambie la segunda variable si la primera variable aumenta?

1. horas de sueño y nivel de energía
2. longitud del pelo y nivel de energía
3. número de eventos escolares cada semana y tiempo dedicado a ver videos en línea cada semana
4. temperatura y ventas de sandías

Se recolectaron algunos datos para cada par de variables de la lista y se representaron con un diagrama de dispersión. En cada caso, ¿los diagramas de dispersión apoyan o contradicen tus respuestas a las preguntas anteriores? ¿De qué manera?

1.  

   

   Scatter plot on grid, origin O. Horizontal axis, hours of sleep, from 0 to 10. Vertical axis, amount of energy, from 0 to 100, by 10’s. 50 data points. Approximate values 1 comma 10, 1 comma 14, 2 comma 4, 2 comma 5, 2 comma 8, 2 comma 9, 2 comma 22, 2 comma 27, 3 comma 5, 3 comma 18, 3 comma 19, 3 comma 22, 3 comma 25, 3 comma 26, 3 comma 29, 3 comma 37, 3 comma 39, 4 comma 4, 4 comma 12, 4 comma 20, 4 comma 27, 4 comma 33, 4 comma 39, 4 comma 43, 4 comma 47, 5 comma 30, 5 comma 21, 5 comma 28, 5 comma 42, 6 comma 31, 6 comma 53, 7 comma 10, 7 comma 42, 7 comma 59, 7 comma 66, 8 comma 17, 8 comma 20, 8 comma 92, 9 comma 26, 9 comma 54, 9 comma 55, 9 comma 87, 9 comma 96, 10 comma 14, 10 comma 41, 10 comma 43, 10 comma 52, 10 comma 95, 10 comma 98, 10 comma 99.
2.  

   

   Scatter plot on grid, origin O. Horizontal axis, length of hair, inches, from 0 to 12. Vertical axis, amount of energy, from 0 to 100, by 10’s. 50 data points. Approximate values at 0 comma 30, 0 comma 33, 0 comma 49, 0 comma 74, 0 comma 85, 0 comma 93, 1 comma 36, 1 comma 90, 2 comma 29, 2 comma 98, 3 comma 30, 3 comma 44, 3 comma 45, 4 comma 18, 4 comma 19, 4 comma 26, 4 comma 28, 4 comma 28, 5 comma 22, 5 comma 48, 5 comma 57, 5 comma 64, 6 comma 7, 6 comma 21, 7 comma 3, 7 comma 17, 7 comma 48, 7 comma 57, 7 comma 65, 8 comma 11, 8 comma 25, 8 comma 33, 8 comma 57, 8 comma 80, 8 comma 86, 8 comma 96, 9 comma 30,  comma 37, 9 comma 38, 9 comma 53, 9 comma 71, 9 comma 73, 10 comma 32, 11 comma 5, 11 comma 54, 11 comma 60, 12 comma 48, 12 comma 55, 12 comma 67, 12 comma 95.
3.  

   

   Scatter plot on grid, origin O. Horizontal axis, number of school events, from 0 to 10. Vertical axis, time spent watching videos online, hours, from 0 to 10. 50 data points. Approximate values at 0 comma 5 point 3, 0 comma 5 point 5, 0 comma 5 point 7, 0 comma 6 point 4, 0 comma 6 point 9, 0 comma 9, 1 comma 3 point 8, 1 comma 4 point 2, 1 comma 7 point 7, 1 comma 8 point 8, 2 comma 3 point 6, 2 comma 3 point 7, 2 comma 4 point 3, 2 comam 4 point 5, 2 comma 5 point 2, 2 comma 6 point 2, 2 comma 7 point 5, 3 comma 3 point 6, 3 comma 3 point 9, 3 comma 6 point 3, 4 comma 2 point 5, 2 comma 2 point 9, 4 comma 3 point 8, 4 comma 4, 4 comma 4 point 4, 4 comma 5 point 4, 4 comma 5 point 8, 5 comma 2 point 7, 5 comma 3 point 4, 5 comma 3 point 7, 5 comma 3 point 9, 5 comma 4 point 1, 5 comma 4 point 4, 5 comma 4 point 7, 6 comma 1 point 7, 6 comma 3 point 3, 6 comma 3 point 1, 6 comma 3 point 4, 6 comma 3 point 7, 7 comma 1 point 5, 7 comma 2 point 2, 7 comma 2 point 7, 8 comma 0 point 9, 8 comma 1 point 1, 8 comma 1 point 2, 8 comma 1 point 4, 8 comma 1 point 7, 9 comma 0 point 4, 9 comma 0 point 6, 9 comma 0 point 7.
4.  

   

   Scatter plot on grid, Origin O. Horizontal axis, Temperature, degrees Fahrenheit, from 0 to 90 by 10’s. Vertical axis, watermelon sales, dollars, from 0 to 100 by 10’s. Points at 5 comma 14, 5 comma 22, 6 comma 8, 8 comma 5, 10 comma 7, 11 comma 21, 12 comma 7, 14 comma 12, 14 comma 31, 15 comma 17, 15 comma 28, 17 comma 16, 16 comma 17, 18 comma 32, 19 comma 7, 20 comma 0, 21 comma 32, 26 comma 10, 28 comma 20, 28 comma 29, 30 comma 38, 36 comma 20, 42 comma 33, 43 comma 56, 44 comma 54, 47 comma 65, 48 comma 35, 55 comma 69, 58 comma 77, 59 comma 56, 60 comma 41, 60 comma 57, 61 comma 68, 62 comma 50, 62 comma 77, 63 comma 59, 65 comma 53, 68 comma 75, 68 comma 83, 71 comma 87, 72 comma 64, 75 comma 58, 76 comma 67, 80 comma 67, 80 comma 69, 81 comma 78, 85 comma 66, 85 comma 94, 87 comma 95.