A=16 b=8, substitution method shown in photo
Answer:
A finger
Step-by-step explanation:
Its a finger.
Answer:
X
2
Step-by-step explanation:
Answer:
they are 10 ppl in the crew
$12800×15/100=$1920
$10×100/80=$12.50
Answer:
Step-by-step explanation:
Given that that (X) the amount of time lapsed between consecutive trades on the New York Stock Exchange followed a normal distribution with a mean of 15 seconds.
i.e. X is normal with mean = 15 and unknown std deviation 
Given that
i.e. P(
z=-1.475 (from normal table)
Hence 
Using this we find P(X>17) = 