Question

introducción a la visualización de datos - artículo 35557
el dueño de una tienda registra la cantidad de lámparas vendidas en cuatro días.
el gráfico de barras muestra los resultados.
usa el gráfico de barras para responder las preguntas.
store sales
lamps sold
thursday friday saturday sunday
¿cuántas lámparas más se vendieron el sábado que el jueves?
¿cuántas lámparas menos se vendieron el jueves que el domingo?

Explanation:

First Question: How many more lamps were sold on Saturday than on Thursday?

Step1: Determine lamps sold on Saturday

From the bar graph, Saturday's bar reaches 45 (assuming each grid line is 5, and it's 9 grids up from 0, but looking at the y - axis, the purple bar for Saturday is at 45? Wait, the y - axis has 0,10,20,30,40,50. The blue bar for Thursday is at 10, orange for Friday at 25, purple for Saturday at 45, green for Sunday at 35. Wait, let's check the y - axis labels. The y - axis is "Lamps Sold" with ticks at 0,10,20,30,40,50. So Thursday: blue bar is at 10 (so 10 lamps), Saturday: purple bar is at 45 (45 lamps).

Step2: Calculate the difference

Subtract the number of lamps sold on Thursday from the number sold on Saturday. So $45 - 10=35$.

Step1: Determine lamps sold on Thursday and Sunday

Thursday: 10 lamps (from the bar graph, blue bar at 10), Sunday: green bar at 35 (35 lamps).

Step2: Calculate the difference

Subtract the number of lamps sold on Thursday from the number sold on Sunday. So $35 - 10 = 25$.

Answer:

35

Second Question: How many fewer lamps were sold on Thursday than on Sunday?