Voltage rating Capacitance 10 V 50 V 100 V Total 4 pF 12 pF 20 pF 9 11 13 33 12 16 8 36 10 14 7 31 Total 31 41 28 100 in a lab, there are 100 capacitors of three values and three voltage ratings as shown in Table 2.1. Let event A be apacitor and event B be drawing a 50 V capacitor. Determine: (a) P(A) and P(B), (b) P(AB), (c) 12 pF P(A/B), (d) P(B/A).
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- Q4. We have two coins; the first is fair and the second two-headed. We pick one of the coins at random, we toss it twice and heads show both times. Find the probability that the coin picked is fair. 1 OF 2 220 WORDS ENGLISH (UNITED STATES) 73°F Clear ? Z @ DE OI 2 Y W 4 S 7 alt 200 X # 3 T O E Q Search Ta 8 + $ 4 E fs R Jo % 5 DE 0 fo T ^6 G y fy B 4+ Y Y Y & Fa 7 H 144 V COMACH hp * ی To 8 DIL ^ to DDI M 9 -- O 1 alt ort sc 1 1 [ S 4 S 64 ctrl 11 S J pause 11 ENG UK - 430 CRICK 1:48 A 11/11/20 homeSolve these questions using the data table below pleaseQ20: Roll one fair 6-sided dice, let X be the number observed. (a) Find E(X), Var(X), SD(X). (b) Let Y be the sum of 10 independent rolls of fair dice. Find E(Y), Var(Y), SD(Y). (c) Calculate the following quantities: E(X2), E(3X+2), E((Y+2)2), Var(-X), SD(2Y).
- T-Mobile Wi-Fi ? 1 7:05 PM • 26% O Done 4 of 6 BG|H| Ma MO ee|e FL O a E FU FIJ FOL FJ W G FOL GG + ( student desmos.com/activitybuider/student/GO907e4r0a264dacbd4dlac3Ascreelox=3 Update ! Acps a O Ceurau Cenc. Crs Destiny sn. O Emplesmont Center ogin Seian epratien * Login Se eration b Selng Aasociate. M Sien in P vew Portrah og.. * Nurring: Tradition. = Unit 4, Lesson 10: Estimating Proportions from Samples Destiry Oloegtu 3 of 14 Next > Fly Memory A biologist is breeding fruit flies to include a specific genetic mutation that will be useful in understanding momory in humans. To chock whether a fly has the mutation, a DNA sequence is analyzed in a way that kills the fly, so the biologist only wants to test a sample of the flies to estimate the proportion of flias that have the mutation. The biologist solocts 40 flies to scquence at random and finds that 9 of them have the genetic mutation. Based on this sample, estimate the proportion of flies in this group that has the gonetic…9:10 PM Thu Oct 12 030 35 0 40 045 050 Remix Assuming 90% of adults watch TV every day. In a group of 50 rando mly selected adults, How many adults you expect to watch TV every day do 09 MoonChildNat Today at 7:01 PM React 25% ...A4
- #143. Global Temperatures A research group measured the Earth's globally averaged temperature T during June in 4 different years, and obtained the data listed in the table. Year T (K) 1994 286.73 1 2002 286.83 2 2008 286.90 3 2015 286.98 4 rows x 2 columns What is the expected global temperature in June 2016? I number (rtol=0.01, atol=0.0001) Give a prediction interval for the temperature in June 2017 at the 86% level. Ib number (rtol=0.01, atol=0.0001) ub number (rtol=0.01, atol=0.0001) In what year are you at least 90% confident that the expected June temperature first exceeded 286.78 K? Year number (rtol=0.01, atol=0.0001) A climate-skeptic questions whether the Earth is really getting warmer. How could you test this hypothesis. Compute the relevant test statistic and its associated P-value. (Note: report the absolute value for the statistic) t-statistic number (rtol=0.01, atol=0.0001) P-value number (rtol=0.01, atol=0.0001) What is your conclusion at a 5% significance level? O (a)…I need help solving the Question number 88:43 The following data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) to (c). Student Perpectual Bempah Megan Brooks Jeff Honeycutt Clarice Jefferson Crystal Kurtenbach Janette Lantka Kevin McCarthy Tammy Ohm Kathy Wojdya ||| = Pulse 69 70 85 88 76 72 7 88 85 71 LTE2 36% (a) Determine the population mean pulse. The population mean pulse is approximately beats per minute. (Type an integer or decimal rounded to the nearest tenth as needed.)
- Jobs and productivity! How do retail stores rate? One way to answer this question is to examine annual profits per employee. The following data give annual profits per employee (in units of 1 thousand dollars per employee) for companies in retail sales. Assume σ ≈ 5.1 thousand dollars. 3.5 7.0 4.3 8.6 7.6 5.0 8.7 5.7 −1.6 4.3 2.8 5.3 (a) Find x for the preceding data. (Round your answer to two decimal places.) thousand dollars per employee(b) Let us say that the preceding data are representative of the entire sector of retail sales companies. Find an 80% confidence interval for μ, the average annual profit per employee for retail sales. (Round your answers to two decimal places.) lower limit thousand dollars upper limit thousand dollars (c) Find an 95% confidence interval for μ, the average annual profit per employee for retail sales. (Round your answers to two decimal places.) lower limit thousand dollars upper limit…QUESTION 4 a) Given P (X) = 0.4, P (Y) = 0.4 and P (X/Y') = 0.25. i) Find the probability that the event Y does not occur. ii) Draw a contingency table to represent the events above. iii) Find P (XU Y).Question 2: Exponential distribution The distance X between two successive faults in a metallic wire is an exponential random variable with parameter A = 1.3 faults per cm (centimeter). Answer the following questions. 1. Calculate the probability of P(X<1) 2. Find the probability of P(o.9 < Xs 1.7) 3. Calculate the probability that the distance between two successive faults will be greater than 3 mm (millimeters)