Question

in order to decide which employees deserve a promotion, westview art house is examining their sales records. the graph below shows the number of wood carvings sold by matthew armstrong over the last 10 weeks.
number of wood carvings sold per week
on average, how many wood carvings did matthew sell per week from the beginning of week 3 to the end of week 10?
wood carvings
using the average calculated in the previous question, predict how many wood carvings matthew will sell over the next 9 weeks.
round your answer to the nearest whole number.
wood carvings

Explanation:

Step1: Extract sales from Week3-10

Sales values: 7, 7, 8, 2, 14, 0, 10, 1

Step2: Calculate total sales

$7 + 7 + 8 + 2 + 14 + 0 + 10 + 1 = 49$

Step3: Compute weekly average

$\text{Average} = \frac{\text{Total Sales}}{\text{Number of Weeks}} = \frac{49}{8} = 6.125$

Step4: Predict 9-week sales

$\text{Predicted Sales} = 6.125 \times 9 = 55.125$
Round to nearest whole number: $55$

Answer:

1. 6.125 wood carvings
2. 55 wood carvings