At the beginning, the chances that the teacher will choose a student who has forgotten his lunch are 2/10, or 1/5.
If the teacher now chooses another student from the remaining 9 students, the chances of his choosing a student who has forgotten his lunch are 1/9, since one of the forgetful students has already been removed from the original group of 10 students, and there are only 9 in the group remaining.
The probability that both students forgot lunch is (1/5)(1/9), or 1/45.
Answer:
2/9 is the probability.
Step-by-step explanation:
Hope's this helps.
1,01340 cuase 1,689 times 2 equal 3,378 and times 30 equal 101340
Answer:
About 39,402.
Step-by-step explanation:
You need to find the 46% of black cars.