Answer:
a cartridge containing gunpowder but no bullet, used for training or as a signal is blank
Answer:
#1- 7x*2=14x, the rest = 7x
Step-by-step explanation:
Answer: 47.1/15
Step-by-step explanation:
We define Circumference by C= pie X D[diameter]
Hence pie= C/ D= 47.1/15
Answer:
The expected number of tests necessary for the entire group of 304 people is 180.0325
Step-by-step explanation:
Probability of person being positive = p = 0.04
Probability of person being negative = q = 1-0.04=0.96
Number of people in each group = 19
We will use binomial over here
Probability of no test positive :

P( at least one tests positive) = 1-P( no one tests positive)= 1-0.460419201958= 0.539580798042
Expected number of tests for each group = 1(0.460419201958)+20(0.539580798042) = 11.2520351628
Number of groups =
Expected number of tests necessary for the entire group of 304 people:
=
=
=180.0325
Hence The expected number of tests necessary for the entire group of 304 people is 180.0325