Mathematics, 09.04.2020 03:53 chops85
On a standardized test with a normal distribution the mean score was 67.2. The standard deviation was 4.6. What percent of the data fell between 62.6 and 71.8?
Question 2 options:
95%
68%
4.6%
13.2%
Answers: 3
Mathematics, 21.06.2019 14:30, kutemigos9211
Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition
Answers: 3
Mathematics, 22.06.2019 04:10, kyllow5644
Line ab contains points a(4, 5) and b(9.7). what is the slope of ab?
Answers: 2
On a standardized test with a normal distribution the mean score was 67.2. The standard deviation wa...
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