Range, Variance, and Standard Deviation Help!

MoriahBeee

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Nov 26, 2011
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Find the Range, Variance, and the Standard Deviation.

A book has 1459 pages of defined words. Listed below are the numbers of defined words per page for a simple random sample of those pages. If we use this sample as a basis for estimating the total number of defined words in the dictionary, how does the variation of these numbers affect our confidence in the accuracy of the estimate?

51 63 36 43 34 62 73 39 53 79

I have no idea how to even start solving this problem :( Help please!
 
Find the Range, Variance, and the Standard Deviation.

A book has 1459 pages of defined words. Listed below are the numbers of defined words per page for a simple random sample of those pages. If we use this sample as a basis for estimating the total number of defined words in the dictionary, how does the variation of these numbers affect our confidence in the accuracy of the estimate?

51 63 36 43 34 62 73 39 53 79

I have no idea how to even start solving this problem :( Help please!

Please tell us the mathematical equations to be used for those parameters.

I'll give you one:

Range = Max. - Min.

Please share your work with us indicating exactly where you are stuck - so that we may know where to begin to help you.
 
Set the data As high meid low

i hava a data set like

Session
1
3
4
8
12
14
31
109
126
150
161
183
194
210
211
221
246
254
259
268
270
271
292
298
302
303
345
371
388
393
454
480
510
523
525
526
529
534
554
564
567
617
713
729
739
748
756
785
798
800
866
869
918
923
928
963
979
980
990
1018
1023
1024
1061
1121
1223
1247
1275
1331
1386
1419
1442
1461
1537
1544
1564
1623
1655
1672
1694
1787
1790
1861
1904
1962
1999
2012
2177
2201
2281
2305
2312
2341
2388
2454
2462
2858
2874
2894
2995
3069
3384
3402
3502
4014
4323
4575
4720
5141
5398
5644
5794
5969
6169
6815
7630
7948
8159
8685
9682
10138
11163
11362
12124
12260
12913
13541
14273
14825
16681
17454
19612
22492

i make this from the data


Minimum 1
Lower Qurtile=q1 516.5
Median= q2 1261
Upper Qurtile=q3 3032
Maximum 22492


Inter Quartile Range 2515.5


for minimum i set a range 1-516
for q1 i set a range 517-1260
for q2 i set a range 1261
for q3 i set a range 1262-3032
for maximum i set a range 3033-22492

is that ok with that data or i have to change the range?can anyone help me with that

my main aim is to set the range of the data like
0-10 low
11-20 Mid
21-30 high like that range.......................................


Plz help me with that data with an example
 
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