Homework SoursePoint WtGrp3 Rank Percent 8 220 1 10000 17 216 2 9640 15 213
Point
Wt_Grp_3
Rank
Percent
8
220
1
100.00%
17
216
2
96.40%
15
213
3
89.20%
27
213
3
89.20%
4
211
5
85.70%
2
209
6
82.10%
10
205
7
75.00%
13
205
7
75.00%
29
202
9
71.40%
3
201
10
67.80%
11
200
11
64.20%
7
196
12
57.10%
14
196
12
57.10%
25
195
14
50.00%
26
195
14
50.00%
19
193
16
46.40%
5
191
17
42.80%
12
174
18
39.20%
21
172
19
35.70%
24
165
20
32.10%
22
163
21
28.50%
9
162
22
25.00%
23
161
23
21.40%
18
159
24
17.80%
1
157
25
14.20%
6
156
26
7.10%
28
156
26
7.10%
16
152
28
3.50%
20
150
29
0.00%
What percent of the sample weigh 172 lbs. or less? ______ %
What percent of the sample is 200 lbs or more? ______
What is the median weight? _____ lbs.
25% of the sample weighs less than or equal to: _____ lbs.
| Point | Wt_Grp_3 | Rank | Percent | |
| 8 | 220 | 1 | 100.00% | |
| 17 | 216 | 2 | 96.40% | |
| 15 | 213 | 3 | 89.20% | |
| 27 | 213 | 3 | 89.20% | |
| 4 | 211 | 5 | 85.70% | |
| 2 | 209 | 6 | 82.10% | |
| 10 | 205 | 7 | 75.00% | |
| 13 | 205 | 7 | 75.00% | |
| 29 | 202 | 9 | 71.40% | |
| 3 | 201 | 10 | 67.80% | |
| 11 | 200 | 11 | 64.20% | |
| 7 | 196 | 12 | 57.10% | |
| 14 | 196 | 12 | 57.10% | |
| 25 | 195 | 14 | 50.00% | |
| 26 | 195 | 14 | 50.00% | |
| 19 | 193 | 16 | 46.40% | |
| 5 | 191 | 17 | 42.80% | |
| 12 | 174 | 18 | 39.20% | |
| 21 | 172 | 19 | 35.70% | |
| 24 | 165 | 20 | 32.10% | |
| 22 | 163 | 21 | 28.50% | |
| 9 | 162 | 22 | 25.00% | |
| 23 | 161 | 23 | 21.40% | |
| 18 | 159 | 24 | 17.80% | |
| 1 | 157 | 25 | 14.20% | |
| 6 | 156 | 26 | 7.10% | |
| 28 | 156 | 26 | 7.10% | |
| 16 | 152 | 28 | 3.50% | |
| 20 | 150 | 29 | 0.00% |
Solution
From the table given it is clear that 35.70 % weigh 172 lbs or less
Since 64.20% weigh 200 lbs or less, hence 35.80% weigh 200lbs or more
The median is the weight with 50% above and below that is 195 lbs
From the table 162 lbs is the weight, which is such that 25% of the sample weighs is less than or equal it
