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>
Answer:
When a=-2, and b=5, a+b = -2+5, which is equal to 3.
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Answer:
20
Step-by-step explanation:
-10-5x(-6)
-10+30
20
Answer:
8
Step-by-step explanation:
number of rooms=6÷3/4=6×4/3=8