Answer:
(2, 2) and (3, 4)
Step-by-step explanation:
as x increases by 1, y increases by 2. so, just add 2 to the last y value to get the answer.
Answer:
a) Mean = 19
b) Standard Deviation = 3.08
Step-by-step explanation:
This is binomial probability distribution. We need to find the mean and standard deviation.
a) Mean
The formula for mean is:
![Mean = np](https://tex.z-dn.net/?f=Mean%20%3D%20np)
Where n is the number of people, which is 38 and p is the probability of girl, which is 0.5
n = 38
p = 0.5
So,
![Mean = np\\Mean = (38)(0.5)\\Mean = 19](https://tex.z-dn.net/?f=Mean%20%3D%20np%5C%5CMean%20%3D%20%2838%29%280.5%29%5C%5CMean%20%3D%2019)
Mean = 19
b) Standard Deviation
Standard deviation has the formula:
![Standard \ Deviation= \sqrt{np(1-p)}](https://tex.z-dn.net/?f=Standard%20%5C%20Deviation%3D%20%5Csqrt%7Bnp%281-p%29%7D)
Where n and p are the same variables in part (a)
So we plug them in and find:
![Standard \ Deviation= \sqrt{np(1-p)} \\Standard \ Deviation= \sqrt{(38)(0.5)(1-0.5)} \\Standard \ Deviation= \sqrt{38*0.5*0.5}\\ Standard \ Deviation= \sqrt{9.5}\\Standard \ Deviation= 3.08](https://tex.z-dn.net/?f=Standard%20%5C%20Deviation%3D%20%5Csqrt%7Bnp%281-p%29%7D%20%5C%5CStandard%20%5C%20Deviation%3D%20%5Csqrt%7B%2838%29%280.5%29%281-0.5%29%7D%20%5C%5CStandard%20%5C%20Deviation%3D%20%5Csqrt%7B38%2A0.5%2A0.5%7D%5C%5C%20Standard%20%5C%20Deviation%3D%20%5Csqrt%7B9.5%7D%5C%5CStandard%20%5C%20Deviation%3D%203.08)
Standard Deviation = 3.08
Answer:
its 15
Step-by-step explanation:
The answer is 882 because if you take answer choices A, B, and C, and divide them by 6, none of them come out to a whole number. However, D, 882, comes out to 882/6= 147. Since it is a whole number, 882 is a multiple of 6.
<span>√2/2 in fraction form
</span>