Percent means parts ot of 100
25%=25/100=1/4
ratio is 1:4 or 2:8 or 6:12
Answer:
a) Scores of 2 and higher are significantly high
b) Scores of -2 and lower are significantly low
c) Scores between -2 and 2 are not significant.
Step-by-step explanation:
Mean = 0
Standard deviation = 1
a. significantly high (or at least 2 standard deviations above the mean).
2 standard deviations above the mean is:
0 + 1*2 = 2
So scores of 2 and higher are significantly high
b. significantly low (or at least 2 standard deviations below the mean).
2 standard deviations below the mean is:
0 - 1*2 = -2
So scores of -2 and lower are significantly low
c. not significant (or less than 2 standard deviations away from the mean).
2 standard deviations above the mean is:
0 + 1*2 = 2
2 standard deviations below the mean is:
0 - 1*2 = -2
So scores between -2 and 2 are not significant.
Answer:
3
Step-by-step explanation:
a = the other leg:
![a^{2} =(2\sqrt{3} )^{2} -(\sqrt{3}) ^{2} =(4)(3)-3=12-3](https://tex.z-dn.net/?f=a%5E%7B2%7D%20%3D%282%5Csqrt%7B3%7D%20%29%5E%7B2%7D%20-%28%5Csqrt%7B3%7D%29%20%5E%7B2%7D%20%3D%284%29%283%29-3%3D12-3)
![a^{2} =9](https://tex.z-dn.net/?f=a%5E%7B2%7D%20%3D9)
![a=\sqrt{9}](https://tex.z-dn.net/?f=a%3D%5Csqrt%7B9%7D)
![a=3](https://tex.z-dn.net/?f=a%3D3)
Hope this helps