The system of equations will be:
<h3>How to explain the euation?</h3>
The slope = (-2 - 3) / (1 - 2) = -5/-1 = 5
Uin y = mx + b
slope(m) = 5
(2,3)...x = 2 and y = 3
Now sub into the formula
3 = 5(2) + b
3 = 10 + b
3 - 10 = b
-7 = b
The equation is : y = 5x - 7 or 5x - y = 7
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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
Answer:
mean=sum of data /no of data
=66/6
=11
mean=11
for median u should arrange the data from ascending to descending order.so,
3,8,10,12,16,17
median=N+1/2(N=number of data)
=7/2
=3.5
=3 rd term + 4 th term/2
=10+12/2
=22/2
=11
median=11
Step-by-step explanation:
Answer:
(-x,y)
Step-by-step explanation: