5+3=8
Every time you draw, its minus one from denominator
1st marble red: 5/8
2nd marble green: 3/7
A=h(b+c)
A/h=b+c
b=(A/h)-c
Answer: b=(A/h)-c
Complete the Square:
Plug your numbers in this function
You get this
That equals 
Answer:
Yes, this is a valid inference because she took a random sample of the neighborhood.
Step-by-step explanation:
As her survey was non bias and completely random and she found that 15% of the families would participate in the event. She claims that 15% of the neighborhood families would be expected to participate in the sports event. So, yes, this is a valid inference because she took a random sample of the neighborhood.
$0.00995 is the correct answer.
$3.98/400=0.00995
