smith5845
19.04.2021 •
Mathematics
Math Test #1 T 5 X A math teacher has started a competition to get students to study for tests. She says that when more than half the class gets an 80 or better AND 95% or more of the class scores 65 or better, they will get pizza for lunch. On the first test, the mean is 75 with a standard deviation of 9. Using the Empirical Rule, does the class get the pizza for lunch? Why or why not? You may use the sketch on the left if needed. 1 1 1 1 1 -20 11 11+20 +30 r Suami
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efef
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Ответ:
Solution
25 * 10 = 250
It is a multiplication. The multiplication is nothing the repeated addition.
Therefore, we add 10 +10 + 10 + 10 +10 +10 + 10 +10 +10 + 10 +10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 +10 + 10 + 10 = 250
In other words,
1*10 = 10
2*10 = 20
3*10 = 30
. . .
25*10 = 250.
Here n is the variable, n = 1 to 25.
Therefore, patttern is n *10 when n = 1 to 25.
Thank you :)