Standard deviation is calculated by the square root of the variance. Now, how do we solve the variance? The variance is the <span>average of the </span>squared differences from the Mean. Calculating the variance, we can obtain a standard deviation of <span>3.74. Therefore, the correct answer is option A.</span>
4 1/2(2)=9. Multiply by 2 to get total
9- 3 1/2=z. Subtract 3 1/2 from total to get Z
5 1/2= Z
Answer:
48
Step-by-step explanation:
1) 9*8=72
2) 8*3=24
3)72-24=48
Answer:
b
Step-by-step explanation:
Hope this helped! Please tell me If I'm wrong!