A
B
C
D
E
1
2
3
Date
Price of gas
4
Jan 07, 2008
325.3
5
Jan 14, 2008
323.9
6
Jan 21, 2008
320.1
7
Jan 28, 2008
316.3
8
Feb 04, 2008
313.5
9
Feb 11, 2008
310.7
10
Feb 18, 2008
315.4
11
Feb 25, 2008
324.6
12
Mar 03, 2008
325.2
13
Mar 10, 2008
326.3
14
Mar 17, 2008
333.7
15
Mar 24, 2008
332.1
16
Mar 31, 2008
334.8
17
Apr 07, 2008
336.6
18
Apr 14, 2008
341.6
19
Apr 21, 2008
355
20
Apr 28, 2008
366.9
21
May 05, 2008
367.7
22
May 12, 2008
376.4
23
May 19, 2008
384.9
24
May 26, 2008
397.5
25
Jun 02, 2008
402.6
26
Jun 09, 2008
407
27
Jun 16, 2008
411.8
28
Jun 23, 2008
411
29
Jun 30, 2008
411.3
30
Jul 07, 2008
412.3
31
Jul 14, 2008
411.7
32
Jul 21, 2008
408.4
33
Jul 28, 2008
400.2
34
Aug 04, 2008
393.9
35
Aug 11, 2008
386.6
36
Aug 18, 2008
376.4
37
Aug 25, 2008
371.5
38
Sep 01, 2008
369.8
39
Sep 08, 2008
367.1
40
Sep 15, 2008
373
41
Sep 22, 2008
368
42
Sep 29, 2008
362.7
43
Oct 06, 2008
351.7
44
Oct 13, 2008
323.9
45
Oct 20, 2008
305
46
Oct 27, 2008
286.1
47
Nov 03, 2008
265.4
48
Nov 10, 2008
247.7
49
Nov 17, 2008
229.4
50
Nov 24, 2008
212.8
51
Dec 01, 2008
203
52
Dec 08, 2008
191.8
53
Dec 15, 2008
181
54
Dec 22, 2008
178.1
55
Dec 29, 2008
174.1
QUESTION 13
Label the next column (D) "6-month change." Here we will calculate how much prices have changed since the price six months ago. For example, if the price on January 1 were 224.1 and the price on July 1 is 324.1, the price change is 100. We can't calculate how much prices have changed over the past six months for the first half of 2008 because we don't know the price six months before. So, in column D, put an x in each cell for which we can't calculate the 6-month change. Starting in July, we can calculate the 6-month change. Using cell references, enter here the formula you should enter into cell D30 to calculate the 6-month change.
2 points
QUESTION 14
Copy and paste the formula from cell D30 (from the last question) into cells D31 to D55. What formula is now in cell D48?
2 points
QUESTION 15
What value is now in cell D50?
1 point
QUESTION 16
Label the next column (E) "% of Jan." In this column, we will divide every week's price by the price from January 7th. This will tell us as a percent how prices compare to their level at the start of the year. This time, we want an "absolute" reference so that it doesn't consider the position (i.e. "8 to the left and 2 down") but just locks in on B4 every time. To set up an absolute reference in a formula, we put the $ character into the reference, so instead of B4, we use $B$4. With the dollar signs in place, you can copy the formula and paste it, and in each case, it will go back to B4 regardless of where you are when you paste it. What formula should you type into cell E5 to get the "% of Jan" for January 14, 2008? Remember to use the absolute reference so it will be easy to copy later!
2 points
QUESTION 17
Copy and paste the formula from cell E5 into the rest of column E. (Well, at least from E6 down to E55.) What formula is now in cell E17?
A |
B |
C |
D |
E |
|
1 |
|||||
2 |
|||||
3 |
Date |
Price of gas |
|||
4 |
Jan 07, 2008 |
325.3 |
|||
5 |
Jan 14, 2008 |
323.9 |
|||
6 |
Jan 21, 2008 |
320.1 |
|||
7 |
Jan 28, 2008 |
316.3 |
|||
8 |
Feb 04, 2008 |
313.5 |
|||
9 |
Feb 11, 2008 |
310.7 |
|||
10 |
Feb 18, 2008 |
315.4 |
|||
11 |
Feb 25, 2008 |
324.6 |
|||
12 |
Mar 03, 2008 |
325.2 |
|||
13 |
Mar 10, 2008 |
326.3 |
|||
14 |
Mar 17, 2008 |
333.7 |
|||
15 |
Mar 24, 2008 |
332.1 |
|||
16 |
Mar 31, 2008 |
334.8 |
|||
17 |
Apr 07, 2008 |
336.6 |
|||
18 |
Apr 14, 2008 |
341.6 |
|||
19 |
Apr 21, 2008 |
355 |
|||
20 |
Apr 28, 2008 |
366.9 |
|||
21 |
May 05, 2008 |
367.7 |
|||
22 |
May 12, 2008 |
376.4 |
|||
23 |
May 19, 2008 |
384.9 |
|||
24 |
May 26, 2008 |
397.5 |
|||
25 |
Jun 02, 2008 |
402.6 |
|||
26 |
Jun 09, 2008 |
407 |
|||
27 |
Jun 16, 2008 |
411.8 |
|||
28 |
Jun 23, 2008 |
411 |
|||
29 |
Jun 30, 2008 |
411.3 |
|||
30 |
Jul 07, 2008 |
412.3 |
|||
31 |
Jul 14, 2008 |
411.7 |
|||
32 |
Jul 21, 2008 |
408.4 |
|||
33 |
Jul 28, 2008 |
400.2 |
|||
34 |
Aug 04, 2008 |
393.9 |
|||
35 |
Aug 11, 2008 |
386.6 |
|||
36 |
Aug 18, 2008 |
376.4 |
|||
37 |
Aug 25, 2008 |
371.5 |
|||
38 |
Sep 01, 2008 |
369.8 |
|||
39 |
Sep 08, 2008 |
367.1 |
|||
40 |
Sep 15, 2008 |
373 |
|||
41 |
Sep 22, 2008 |
368 |
|||
42 |
Sep 29, 2008 |
362.7 |
|||
43 |
Oct 06, 2008 |
351.7 |
|||
44 |
Oct 13, 2008 |
323.9 |
|||
45 |
Oct 20, 2008 |
305 |
|||
46 |
Oct 27, 2008 |
286.1 |
|||
47 |
Nov 03, 2008 |
265.4 |
|||
48 |
Nov 10, 2008 |
247.7 |
|||
49 |
Nov 17, 2008 |
229.4 |
|||
50 |
Nov 24, 2008 |
212.8 |
|||
51 |
Dec 01, 2008 |
203 |
|||
52 |
Dec 08, 2008 |
191.8 |
|||
53 |
Dec 15, 2008 |
181 |
|||
54 |
Dec 22, 2008 |
178.1 |
|||
55 |
Dec 29, 2008 |
174.1 |
QUESTION 13
Label the next column (D) "6-month change." Here we will calculate how much prices have changed since the price six months ago. For example, if the price on January 1 were 224.1 and the price on July 1 is 324.1, the price change is 100. We can't calculate how much prices have changed over the past six months for the first half of 2008 because we don't know the price six months before. So, in column D, put an x in each cell for which we can't calculate the 6-month change. Starting in July, we can calculate the 6-month change. Using cell references, enter here the formula you should enter into cell D30 to calculate the 6-month change.
2 points
QUESTION 14
Copy and paste the formula from cell D30 (from the last question) into cells D31 to D55. What formula is now in cell D48?
2 points
QUESTION 15
What value is now in cell D50?
1 point
QUESTION 16
Label the next column (E) "% of Jan." In this column, we will divide every week's price by the price from January 7th. This will tell us as a percent how prices compare to their level at the start of the year. This time, we want an "absolute" reference so that it doesn't consider the position (i.e. "8 to the left and 2 down") but just locks in on B4 every time. To set up an absolute reference in a formula, we put the $ character into the reference, so instead of B4, we use $B$4. With the dollar signs in place, you can copy the formula and paste it, and in each case, it will go back to B4 regardless of where you are when you paste it. What formula should you type into cell E5 to get the "% of Jan" for January 14, 2008? Remember to use the absolute reference so it will be easy to copy later!
2 points
QUESTION 17
Copy and paste the formula from cell E5 into the rest of column E. (Well, at least from E6 down to E55.) What formula is now in cell E17?