年級

科目

問題的種類

數學與統計 大學

嗯...不會統計更不會英文統計 有人可以教嗎🥺

Homework #1 TabletPC Comparison providesawide variety ofinformation abouttablet computers. The company's website enables consumers to easily compare different tablets using factors such as cost, type of operating system, display size, battery life, and CPU manufacturer. A sample of 10 tablet computers isshowninTable 1. (1) How many elements are in this data set? (2) How many variables are in this data set? (3) Which variables are categorical and which variables are quantitative? (4) What type of measurement scale is used for each ofthe variables? Table 1 Product Information for 10 Tablet Computers 點 Cost Operating| Display Size | Battery Life」 CPU (9 | System | (inches) (hours) |Manufacturerl AcerIconia W510 599 [Windows| 104 85 Intel Amazon Kindle Fire HD | 299 |「Android 89 9 TI Apple iPad 4 499 | ios 97 1 Apple HP Envy X2 | 860 [Windows| 116 8 Intel Lenovo ThinkPad Tablet| 668 「Windows| 101 105 Intel MicrosoftSurface Pro | 899 「Windows| 106 4 Intel Motorola Droid 530 「Android 1041 9 TIOMAP XYboard Samsung Ativ SmartPC| 590 「Windows| 116 7 Intel Samsung Galaxy Tab 525 「Android 104 10 Nvidia Sony Tablet 5 360 」Android 94 8 Nvidia 寢 For each of the following variables, indicate whether it is quantitative or qualitative and specify the measurement scale that is employed when taking measurements on each: (1 Class standing of the members of this class relative to each other (2) Admitting diagnosis of patients admitted to amental health clinic (3) Weights of babies born inahospital duringayear (4) Gender of babies born inahospital duringayear (5) Range of motion of elbow joint of students enrolled inauniversity health sciences curriculum (6) Under-arm temperature of day-old infants born inahospital

待回答 回答數: 0
自然科學 大學

求解圖裡UICK quiz的第二小題

acit0r 1taneOuls CUrTent Differentiating Equation 27.22 with respectto time gives the inst: as afunction of time: 4 tt號 一Fe ptasafurc 主二 where Q;/有CC 三方 is the initial current. Figure 27.15b 5 in the resistor that we guessedin order to-apply Kirch Equations 27.15 and 27.21. Equation 27.23 shows that the ci ing capacitor is negative, indicating that the current 1s Figure 27.15c. Both the charge on the capacitor and the ct tially at a rate characterized by the time'constant7了三用C. 人 i 一 GOuicK ouiz 27.5 Considerthe circuitin Figure 27.17 and assume the battery has after the switch is closed, what is the currentin the Figure 27.17 no internal resistance. () 」 battery (a) 0 (b) &/2A(G 28/Z04 8/元(e) impossible to determine (ii) After a 有 eyerylong time, what is the Currentin the battery? Choose from the same choices. theswitch is CC (3 前:銜1加信介2放 IntermittentWindshield Wipers nobiles are equipped with windshield wipers that can operate intermittently during alight rainfall. How does ofsuch wipers depend on the charging and discharging ofacapacitor7 民 The wipers are part ofan 及C circuit whose time constant can be varied by selecting different values of及through amultipo- Sition sWitch. As the voltage across the capacitor increases, the capacitor reaches a point at which it discharges and Higgers the wipers. The circuit then begins another charging cycle. The time interval between the individual sweeps of the wiperS 1 determinedjby the value ofthe time constant.

待回答 回答數: 0