1. Find the mean. Round to the nearest tenth unless otherwise stated. Average nu
ID: 3121217 • Letter: 1
Question
1. Find the mean. Round to the nearest tenth unless otherwise stated.
Average number of defects: 8.0, 6.5, 9.0, 8.8, 8.3, 8.0, 8.8, 9.0, 6.5, 8.0, 8.8, 7.1, 8.3, 6.5, 6.5, 6.7, 8.3, 8.8
8.1
8.3
7.9
7.5
2. Solve the problem.
A furniture store has an average inventory of $5444 at retail, and an average inventory of $3460 at cost. The cost of goods sold for the same period is $19,756.60 and sales of furniture were $30,867.48. Find (a) Stock turnover at cost, and (b) stock turnover at retail. Round to the nearest hundredth.
(a) 1.57, (b) 1.56
(a) 5.67, (b) 5.71
(a) 3.63, (b) 8.92
(a) 5.71, (b) 5.67
3. Solve the problem.
After using a new order of typewriter ribbons, John's Office Services found that a new ribbon could be used to type 76 pages. This was a decrease of 15.5% of pages from the old ribbons. How many pages could John's Office Services type with an old ribbon? Round to the nearest whole number.
104 pages
81 pages
76 pages
ages
8.1
8.3
7.9
7.5
Explanation / Answer
Given data:
Average number of defects: 8.0, 6.5, 9.0, 8.8, 8.3, 8.0, 8.8, 9.0, 6.5, 8.0, 8.8, 7.1, 8.3, 6.5, 6.5, 6.7, 8.3, 8.8
Need to find the mean.
Number of defects = 18
Mean = sum of defects/number of defects
= ( 8.0 + 6.5 + 9.0 + 8.8 + 8.3 + 8.0 + 8.8 + 9.0 + 6.5 + 8.0 + 8.8 + 7.1 + 8.3 + 6.5 + 6.5 + 6.7 + 8.3 + 8.8)/ 18
= 141.9 / 18
= 473/60
= 7.88333
Therefore, mean of the given data is 7.88333
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.