A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard dev
iation of 9. What percentage of students scored between 65 and 89?
1 answer:
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Standard form means, move the variables to the left-hand-side and leave the constant all by herself on the right-hand-side, usually sorting the variables, so"x" goes first.
now, there's a denominator, we can do away with it, by simply multiplying both sides by the denominator, so let's do so,
now, there's a denominator, we can do away with it, by simply multiplying both sides by the denominator, so let's do so,
Answer:
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
- Left to Right
<u>Algebra I</u>
- Terms/Coefficients
- Factoring
Step-by-step explanation:
<u>Step 1: Define</u>
<u>Step 2: Simplify</u>
- [Fraction - Numerator] Factor:
- [Fraction] Reduce: