1. Which of the variables listed above is quantitative discrete? A. Last Order B
ID: 3371839 • Letter: 1
Question
1. Which of the variables listed above is quantitative discrete?
A. Last Order
B. Number of Items
C. Order Total
D. Shipping Weight
E. Shipping
2. Referring to the histogram
A. The number of orders below $70 is greater than the number of orders above $145
B. The number of orders below $45 is greater than the number of orders above $220
C. The number of orders below $120 is greater than the number of orders above $270
D. The number of orders below $70 is greater than the number of orders above $170
3. Referring to the histogram, the average order amount is close to _________.
A. $40
B. $75
C. $95
D. $140
E. $220
4. The following is true about the order totals
A. The mean order total is smaller than the median order total
B. The mean order total equals to the median order total
C. The mean order total is greater than the median order total
5. Referring to the boxplot the median number of items in an order is __.
A. 4
B. 10
C. 13
D. 16
E. 22
6. Referring to the boxplot the inter-quartile range IQR approximately equals to ___.
A. 2
B. 6
C. 19
D. 22
E. 30
The following database fragment represents variables discussed in questions 1-6. This is just an illustration. Refer to graphics and summaries in each individual question. Name Address Shipping Last Order Number of Order Total Shipping items weight Aaliyah Fisher 28 High Street Regular1/5/2001 Abby Cox203 Stanhope stre Regular 1/9/2001 Abraham Bell 78 Aigburth hall ro Regular 1/20/2001 Ahraham Roxer 236 Dundonald str Prioritv1/5/2001 235.93 143.4 5177.59 31.05 23 20 21 17 17Explanation / Answer
1(D) Shipping Weight variables listed above is quantitative discrete.
2(C) The number of orders below $120 is greater than the number of orders above $270.
3(A) Average order amount is close to $40.
4(A) The mean order total is smaller than the median order total.
5(C) Referring to the boxplot the median number of items in an order is 13.
6(B) IQR=(Q3-Q1), Q3=16,Q1=10 then (Q3-Q1)=(16-10)=6
Hence, option(B) is correct. IQR is 6.
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