محتاجة اجابات للاسئلة دى فى الاحصاء بالانجليزى ضرورى

[زبادو]

السلاموا عليكم وحمة الله وبركاته
فى اسئلة موجهانى فى النماذج واشكر اللى يجاوبهالى بسرعة ربنا يخليه
if s=(a1,a2,a3,a4)is asample space,of arandom experment such that p(a3)=2p(a4)=(thirdp(a1)=3p(a2
2_inaparticular class of 44 girls ,24 of them study home economics and 10 girls of them chose other diffrent subjects find the number of girls which are chosen studies both home economics and music .if one girl is chosen at arandom of this class what is the probability that the chosen girl
1_studies home economics and music
2stydy at least one of the two subject
3study home economcs only
4 studies only one of them
28_an employee (A) printed 70 letters by type writer ,80%of them without errors other employee ( printed 30 letters 60% of them without errors if one letter is chosen randomy from all these letters find the probability that this letter is
1_without errors_
2_(printed by the employee (a
3_(with errors and printed by the employee (b
4_printed by employee(a) and without errors