The probability that a randomly selected 40-year-old female will live to be 41 years old is 0.99855 according to the National Vi
tal Statistics Report, Vol. 56, No. 9.(a) What is the probability that two randomly selected 40-year-old females will live to be 41 years old?
1 answer:
0,99855x0,99855=0,997102102
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Answer:
Step-by-step explanation:
let wind velocity=x
speed of plane=y
(x+y)*4=808
x+y=808/4=202 ...(1)
(y-x)*4=488
y-x=122 ...(2)
add (1) and (2)
2y=202+122=324
y=324/2=162
from (1)
x+162=202
x=202-162=40
wind velocity=40 m/hr
speed of plane=162 m/hr
Answer: B. Every 10th students that enters the cafeteria
Explanation:
B is a random sample, while A, C, and D are biased.
