A technician tested a sample of 40 capacitors and recorded the capacitance values in a table. The capacitors had a nominal value of 500nF each. 450 510 515 400 505 495 525 450 495 530 465 515 510 515 450 480 485 495 430 525 520 525 465 485 425 480 495 490 415 485 505 515 500 510 510 500 505 525 525 465 (a) Describe the difference between a discrete variable from continuous variable. (b) Complete the frequency table for the grouped data. Capacitance C (nF) Tally Frequency (Number) Cumulative frequency 400 $\leq$ C < 420 || 2 2 420 $\leq$ C < 440 || 2 4 440 $\leq$ C < 460 ||| 3 7 460 $\leq$ C < 480 480 $\leq$ C < 500 500 $\leq$ C < 520 520 $\leq$ C < 540
Added by Jaime A.
Close
Step 1
- Discrete variables are countable and have distinct, separate values. Examples include the number of students in a class or the number of cars in a parking lot. - Continuous variables can take any value within a range and are measurable. Examples include height, Show more…
Show all steps
Your feedback will help us improve your experience
Danielle Fairburn and 62 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Kari H.
A type of capacitor has resistances that vary according to a normal distribution with a mean of 800 megohms and a standard deviation of 200 megohms. A certain application specifies capacitor with resistance between 900 and 1,000 megohms. (a) What proportion of these capacitors will meet the specification? (b) What must be the standard deviation of the resistance so that the 35% of the capacitors will be suitable for the application if it the process was centered with mean equal to 9500 megohms? (c) If three capacitors are randomly chosen from a lot of capacitors, what is the probability that all three will satisfy the specification? (d) If a new capacitor from a different company was used with a mean value of 880 megohms with the same standard deviation, what proportion of the new capacitor will meet this specification?
Sri K.
In the given network of capacitors as shown in Fig. $4.104$. given $C_{1}=C_{2}=C_{3}=400 \mathrm{pF}$ and $C_{4}=C_{5}=C_{5}=200$ $\mathrm{pF}$. The effective capacitance of the circuit between $X$ and $Y$ is a. $810 \mathrm{pF}$ b. $205 \mathrm{pF}$ c. $600 \mathrm{pF}$ d. $410 \mathrm{pF}$
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD