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.
Answer:
15
Step-by-step explanation:
jdjdjdjsjsjjdjcjcjfjdnejjdnfjfjfjfkf
4h-5+3h = 37
Combine like terms.
7h-5 = 37
Add 5 on both sides.
7h = 42
Divide by 7 on both sides.
h = 6
