Ball Assortment
 |
 20 PCS SOLID CARBIDE BALL END BUR ASSORTMENT FOR STEEL  US $79.00
|
 5 pc chrome steel ball assortment 1 1 2 2 US $70.00
|
 5000 pc chrome steel ball assortment 1 18 1 4 US $65.00
|
| Powered by phpBay Pro |
Can anyone help me plz?
Your teacher gives his class an agreement algebra. A randomly selected student must place a ball temperature range black and white ten balls into 2 boxes. Your teacher will then draw one ball from one of the two boxes. If the ball is white, everyone in the class gets an "A", but if the ball is black, then the whole class gets an "F". How should the student place the balls in the boxes to ensure the possibility of contract and "A"? If done correctly, what is the probability of obtaining an "A"? You can not paint balls, it is necessary to use all them, you have to put all the balls in the buckets, but you do need to put an even number in each box. If done correctly there is only a probability of about 80:20
I would agree with green_mek ... There is a 50% chance that the first box is chosen. If only a white ball is in the first table, there a 100% chance that it would be white. (50%) (100%) = 50% No 50% chance that the second box is selected. The second table has 9 white balls black and 10. The possibility of choosing a white ball would be 19.09 = 47.37%. Therefore, there is 50% (100%) + 50% (47.37%) = 73.69%
Lynch Imports - 4" Premium Ball Shells, Assortment B
|
|
20 PCS SOLID CARBIDE BALL END BUR ASSORTMENT FOR STEEL US $79.00
|
5 pc chrome steel ball assortment 1 1 2 2 US $70.00
|
5000 pc chrome steel ball assortment 1 18 1 4 US $65.00
|
 5000 pc chrome steel ball assortment 1 18 1 4 US $59.00
|
 2 pc chrome steel ball assortment 2 1 4 2 1 2 US $49.00
|
 8 pc chrome steel ball assortment 1 1 7 16 US $46.00
|
 3 pc chrome steel ball assortment 1 1 2 2 US $36.00
|
 3 pc chrome steel ball assortment 1 1 2 2 US $36.00
|
 500 pc chrome steel ball assortment 1 18 1 4 US $33.50
|
 4 pc chrome steel ball assortment 1 2 US $31.00
|
 500 Bicycle G10 assortment 1 8 1 4 inch Deep Groove Radial Ball Bearings US $30.90
|
 500 pc chrome steel ball assortment 1 18 1 4 US $29.00
|
 24 pc chrome steel ball assortment 1 16 15 16 US $26.00
|
 45 pc chrome steel ball assortment 1 8 1 US $26.00
|
 500 Bicycle G25 assortment 1 8 1 4 inch Deep Groove Radial Ball Bearings US $25.90
|
 500 Bicycle bearing Balls assortment 1 8 1 4 inch US $24.95
|
 175 pc chrome steel ball assortment 1 16 1 4 US $22.00
|
 Freud 62 XXX Ball Bearing Assortment for Freud Router US $21.72
|
 Steel Ball Assortment Variety Pack Chrome Bearings 2 lb US $17.95
|
 12 piece 302 stainless bearing ball assortment US $16.00
|
 30 pc chrome steel ball assortment 1 8 1 2 US $16.00
|
 8 pc chrome steel ball assortment 1 2 15 16 US $14.00
|
 8 pc chrome steel ball assortment 1 4 15 32 US $9.00
|
 Steel Ball Assortment Variety Pack Chrome Bearings 12oz US $8.95
|
 40 piece 302 stainless bearing ball assortment US $8.00
|
 8 piece 302 stainless bearing ball assortment US $8.00
|
 8 pc chrome steel ball assortment 1 16 to 7 32 US $7.00
|
 6 piece assortment Soft Polish low carbon steel Balls US $6.00
|
 15 piece assortment Soft Polish low carbon steel Balls US $6.00
|
 5 piece assortment Soft Polish low carbon steel Balls US $6.00
|
| Powered by phpBay Pro |