Answer:
The approximate percentage of SAT scores that are less than 865 is 16%.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviations of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean of 1060, standard deviation of 195.
Empirical Rule to estimate the approximate percentage of SAT scores that are less than 865.
865 = 1060 - 195
So 865 is one standard deviation below the mean.
Approximately 68% of the measures are within 1 standard deviation of the mean, so approximately 100 - 68 = 32% are more than 1 standard deviation from the mean. The normal distribution is symmetric, which means that approximately 32/2 = 16% are more than 1 standard deviation below the mean and approximately 16% are more than 1 standard deviation above the mean. So
The approximate percentage of SAT scores that are less than 865 is 16%.
Answer: -9y
Step-by-step explanation:
Step1: -3 is multiplied by y = -3y
Step 2: -3 multiplied by 2 = -6
Step 3: -3y + -6
Answer:
The answer is,
Step-by-step explanation:
The given product is,
= 
---------------------(1)
Now, the first product to compare is,
= - 0.25 ----------------------------(2)
The second product to compare is,
= 0.5 ------------------------(3)
The 3rd product to compare is,
= 3 ----------------------------(4)
The 4th product to compare is,
= 
= 0.05625 -----------------(5)
Comparing all the values , we get (3) is closest to (1).
Hence, we get, the answer is,
So, you should add the heighth twice and add the width twice too, then add those two together to get your answer.
Answer:
Isnt it 2?
Step-by-step explanation:
