7.2 Describing Data
In order to conduct quick research on the relationship between the price of the smartphone and some of its features, we visited The Product Chart website on October 3rd and collected the data related to the smartphone. The dataset contains information about 300 smarthphones offered by Amazon on that date.
Found 1 records… Imported 1 records. Simplifying…
According to the available dataset, the mean price of Smartphones on October, 3rd was US$358, although the prices vary from US$40 to US$1250 . Most smartphones (75%) weigh between 5.5 and 6.7 ounces and have a screen size between 5.2 and 6.3 inches (See further details in Table below).
| Popularity | Price | Ram | Screen_Size | Storage | Weight | |
|---|---|---|---|---|---|---|
| N.Valid | 300.00 | 300.00 | 297.00 | 300.00 | 300.00 | 291.00 |
| Min | 9.00 | 39.99 | 0.06 | 2.00 | 0.05 | 2.13 |
| Q1 | 30.50 | 179.99 | 3.00 | 5.20 | 32.00 | 5.47 |
| Median | 51.00 | 291.26 | 4.00 | 5.80 | 64.00 | 6.10 |
| Mean | 51.70 | 357.57 | 4.16 | 5.73 | 86.44 | 6.16 |
| Std.Dev | 24.86 | 241.36 | 2.40 | 0.80 | 101.80 | 1.03 |
| Q3 | 73.00 | 477.06 | 6.00 | 6.34 | 128.00 | 6.74 |
| Max | 99.00 | 1249.99 | 12.00 | 7.30 | 1000.00 | 10.68 |
Half of the analyzed smartphones have Dual Sim. Only 7.7% are iPhone and 88.9% have Android as Operating System (OS). For further details see Table below.
| No | Variable | Stats / Values | Freqs (% of Valid) | Graph | Missing |
|---|---|---|---|---|---|
| 1 | Brand [factor] |
1. Alcatel 2. Apple 3. Asus 4. BlackBerry 5. Blackview 6. BLU 7. Caterpillar 8. Cubot 9. Doogee 10. Essential [ 21 others ] |
4 ( 1.3%) 23 ( 7.7%) 3 ( 1.0%) 12 ( 4.0%) 4 ( 1.3%) 19 ( 6.3%) 1 ( 0.3%) 2 ( 0.7%) 1 ( 0.3%) 1 ( 0.3%) 230 (76.7%) |
 |
0 (0.0%) |
| 2 | Dual_Sim [factor] |
1. Single Sim 2. Dual Sim |
146 (49.5%) 149 (50.5%) |
 |
5 (1.7%) |
| 3 | Fingerprint_Sensor [factor] |
1. Front 2. In-Display 3. None 4. Rear 5. Side |
33 (11.7%) 47 (16.7%) 85 (30.2%) 97 (34.5%) 19 ( 6.8%) |
 |
19 (6.3%) |
| 4 | OS [factor] |
1. Android 2. BlackBerry 3. iOS 4. Other 5. Windows |
265 (88.9%) 6 ( 2.0%) 23 ( 7.7%) 1 ( 0.3%) 3 ( 1.0%) |
 |
2 (0.7%) |
In the following sections we are going to describe and evaluate the mean price of smartphones with different features:
- By Operating System: iOs vs rest
- By Brand: Samsung vs (Huawei + Xiaomi)
- By Screen Size: <= 5.8 vs > 5.8
- By Storage Capacity: <= 32 vs > 32
- By Dual Sim: Yes vs No
- By Finger Sensor: Yes vs No