Chips White
Chips White
An urn contains 100 chips, 97 of which are white and the rest red. Chips are drawn randomly with replacement (?
An urn contains 100 chips, 97 of which are white and the rest red. Chips are drawn randomly with replacement (so that the probability of a red chip is the same on each draw). What is the expected value of the number of white chips drawn before the fourth red chip is drawn?
73
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0603 RED YELLOW BLUE WHITE GREEN SMD CHIP LED X 20 F/S $11.99 |
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100x 1206side SMD CHIP WHITE LED,3.2 x1.5×1 mm $14.99 |
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BULK 100 x 1W LED WARM White Light High Power Chip Energy Saving 90 Lumen D1 $33.50 |
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FREE SH 10x 3W LED WARM White Lamp Bright Light High Power Chip 160 Lumen D1 $9.50 |
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5 pcs x 3W Watt LED WARM White Lamp Bright Light High Power Chip 160 Lumen D1 $4.99 |
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FREE SH BULK 100 x 3W LED COOL White Lamp Light High Power Chip 160 Lumen D1 $85.00 |
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1ps 50W WHITE LED Lamp Chip 5500-6000K Bright Light Bulb High Power US1 $10.59 |
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5 pcs x 3W Watt LED COOL White Lamp Bright Light High Power Chip 160 Lumen D1 $5.99 |
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20W LED Warm White High Power 1600LM LED Lamp SMD Chips US $7.70 |
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30W LED Warm White High Power 2800LM LED Lamp SMD Chips US $9.50 |
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30W LED Cold White High Power 2800LM LED Lamp SMD Chips US $9.50 |
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Lot of 2 White PVC Chip Card with 4428 chip Lot of 2 $2.46 |
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20W LED Cold White High Power 1600LM LED Lamp SMD Chips US $8.60 |
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FREE SHIP 1ps 50W WHITE LED Lamp Chip 5500-6000K Bright Light Bulb High Power D1 $19.99 |
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30p PLCC-6 5050 SMD 3-CHIP WHITE LED 9,000mcd FREE SHIP $10.99 |
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50p PLCC-6 5050 SMD 3-CHIP WHITE LED 9,000mcd FREE SHIP $14.99 |
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80p PLCC-6 5050 SMD 3-CHIP WHITE LED 9,000mcd FREE SHIP $20.99 |
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100p PLCC-6 5050 SMD 3-CHIP WHITE LED 9,000mcd FREESHIP $27.99 |
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50W Cool WHITE Lamp Chip 5500-6000K Bright Light Bulb High Power LED+ Base+ Lens $9.84 |
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1pcs 50W LED Cool WHITE Lamp Chip 5500-6000K Bright Light Bulb High Power SMT $8.80 |
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FREE SHIP 1 x 50W WHITE LED Lamp Chip 6000-6200K Bright Light Bulb High Power NE $10.49 |
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10PCS 5050 3 Chips PLCC-6 SMD SMT White LED 16lm $0.01 |
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100pcs 1206 SMD SMT CHIP WHITE LED normal bright $14.99 |
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500pcs of 1206 SMD CHIP WHITE LED,super bright $115.99 |
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100pcs 1206 SMD SMT CHIP WHITE LED ultra bright $19.99 |
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20pcs 1206 SMD SMT CHIP WHITE LED normal bright $5.49 |
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1206 SMD CHIP red,yellow,blue,white Led x 50 each color $40.00 |
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300pcs of 1206 SMD CHIP WHITE LED,super bright $79.99 |
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1206 SMD CHIP red,yellow,blue,white led x 25 each color $14.99 |
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30W LED Cold White High Power 2800LM LED Lamp SMD Chip D2 $12.99 |
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BULK 20 x 1W LED COOL White Lamp Light High Power Chip Energy Saving 90 Lumen D2 $6.99 |
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50 PCS PLCC-6 5050 3-CHIPS POWER SMD 10000mcd WHITE LED $32.00 |
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FREE SH 10x 3W LED COOL White Lamp Bright Light High Power Chip 160 Lumen D2 $11.99 |
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FREE SH 5 x 3W Watt LED COOL White Lamp Bright Light High Power Chip 160 Ln D2 $2.75 |
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FREE SHIP 1 x 50W WHITE LED Lamp Chip 5500-6000K Bright Light Bulb High Power $0.99 |
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New 50W Cool WHITE LED Lamp Chip 5500-6000K Bright Light Bulb High Power BEST $4.99 |
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50W LED Chip White Light Lamp Bulb For LED Spot light Floodlight 32V free ship $7.99 |
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FREE SHIP 20W LED Warm White High Power 1600LM LED Lamp SMD Chips D2 $7.60 |
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PLCC-6 5050 SMD 3-CHIPS white Ultra bright LED 50 pcs $1.27 |
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FREE SHIP 1 x 50W WHITE LED Lamp Chip 5500-6000K Bright Light Bulb High Power D2 $19.99 |
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VINTAGE ANALOG DEVICES AD7616N WHITE CERAMIC GOLD IC CHIP (S9-2-74) $9.99 |
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VINTAGE HP 545 WHITE CERAMIC GOLD IC CHIP (S9-2-75) $9.99 |
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1 x 10W Watt LED WARM WHITE Lamp Chip 800-900 LM Bright Light High Power D2 $3.25 |
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200pcs of Super Bright 0603 SMD CHIP WHITE LED F/S $35.00 |
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5050 SMD White LED 3-Chips 100pcs $9.99 |
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20 PC 5mm 0.5W 5-Chips White SuperFlux LED 100mA 55Kmcd $12.87 |
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50 PC 5mm 0.5W 5-Chips White SuperFlux LED 100mA 55Kmcd $26.67 |
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100PC 5mm 0.5W 5-Chips White SuperFlux LED 100mA 55Kmcd $51.97 |
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500PC 5mm 0.5W 5-Chips White SuperFlux LED 100mA 55Kmcd $219.87 |
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1000X 5mm 0.5W 5-Chips White SuperFlux LED 100mA 55Kmcd $376.27 |