A medical company tested a new drug on 100 people for possible side
effects. This table shows the results.
Adults
Children
Side effects No side effects Total
7 43 50
I 22 I 28 | 50
29
71 100
Total
Compare the probability that an adult has side effects with the probability
that a child has side effects. Draw a conclusion based on your results.
O
A. Pside effects/child) = 0.44
P(side effects adult) = 0.14
Conclusion: Children have a much lower chance of having side
effects than adults.
B. P(side effects child) = 0.22
P(side effects/adult) = 0.70
Conclusion: Children have a much greater chance of having side
effects than adults.

21.4 i did it already for s1

step-by-step explanation:

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

answer: about 22.67

step-by-step explanation: