Answer: 0.71221
Step-by-step explanation:
We know that for binomial distribution :-
, where p is the proportion of success in each trial and n is the sample size.
Given : p=0.80 ; n=20
Then, 
Let X be the binomial variable.
z-score : 
For x=9
For x=17
Then, the probability that more than 9 but less than 17 of the hotels in the sample is given by :-
Hence, the probability that more than 9 but less than 17 of the hotels in the sample = 0.71221
Answer:
hlo guys Gavin magnus here
Answer:
32 $
Step-by-step explanation:
Answer:
x = ± 1
Step-by-step explanation:
Given
3(x² - 4) + 7 = - 2 ( subtract 7 from both sides )
3(x² - 4) = - 9 ( divide both sides by 3 )
x² - 4 = - 3 ( add 4 to both sides )
x² = 1 ( take the square root of both sides )
x² = ± 
= ± 1
Thus
x = - 1, x = 1
The appropriate SI unit for measuring the height of a person is meters.
