Answer:
0.070
Step-by-step explanation:
Y = number on trial
Y has a negative binomial distribution
r = 3
P = 30% = 0.3 probability of positive indication.
P(Y = 11) probability of 11 employees that must be tested to get 3 positives
Y-1Cr-1*p^r*q^(y-r)
Y-1 = 11-1 = 10
r-1 = 3 -1 = 2
10C2 x 0.3³x0.7⁸
45x0.027x0.05764801
= 0.070
This is the probability that 11 employees must be tested to get 3 positives.
How ever much volume is in the stuffie would equal the amount of stuff!
Diameter = 2radius
So 25+25=50
Answer:
At the end of 1 years, your savings will have grown to $4,944.
You will have earned in $144 in interest.
Add 8 to both sides
3y=1/2y+8 then subtract 1/2y
2 1/2=8 then divide by 2.5 to get y=3.2
Hope this helps!