Notice that 25+23+17+14+12+9=100, so among these students there are no 2 studying 2 subjects.
The probabilities of selecting students studying a certain subject are as follows
P(physics)=25/100
P(chemistry)=17/100
P(maths)=9/100
P(sociology)=23/100
P(political sciences)=14/100
P(anthropology)=12/100
since all the sets are disjoint, that is there are no common elements, and since all the students in consideration are enrolled in one these 6 subjects:
P(physics)+P(chemistry)+P(maths)+P(sociology)+P(political sciences)
+P(anthropology)=1
P(a)=P(sociology)+P(political sciences)+P(anthropology)+P(physics)
thus
P(a')=1-P(a)=P(chemistry)+P(maths)=17/100+9/100=26/100=0.26
Answer: 0.26
5/2 ....................................
<span>Po pierwsze, należy dodać dwie frakcje razem na szczycie.
3 2/3 + 1 1/3 = 4 3/3 = 5
</span><span>Teraz przychodzi do 5/2
</span>
<span>Lub 2 1/2 jako liczba mieszanej.</span>
Nawiasem mówiąc, użyłem Google Translate
D. She will have a hard time focusing.
When you have a clean/ neat workspace, you are more productive.
Answer:
c
Step-by-step explanation: