Answer:
the answer would be 70 seconds exactly.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that x is a random variable from a binomial distribution with n = 40 and p = 0.9.
We find that mean = np= 36 and variance = npq = 3.6
Std dev = square root of variance = 1.897
When we approximate binomial to normal we say
X' is Normal with mean = 36 and std dev = 1.897
X' is N(36, 1.897)
Note:
The condition for binomial approximating to normal is p should be close to 1/2
Here p is 0.9 and also nq=4 is very small.
So normal approximation may not give accurate results.
I'm sorry I can't help you but I can break down the question if you'd like
Answer:
-3 is the best answer i hope it helps
Step-by-step explanation:
Y = 4
when you look at the -3 at the x-axis, it meets 4 at the y-axis
