Answer:
6
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
10 + (-3.5) × 2 + (-9) ÷ (-3)
<u>Step 2: Evaluate</u>
- Multiply: 10 - 7 + (-9) ÷ (-3)
- Divide: 10 - 7 + 3
- Subtract: 3 + 3
- Add: 6
Answer:
8.37
Step-by-step explanation:
3/6
3=heads in a row
2=head and tails
3=times tossed
3/3*2
3/6 or 1/2
Answer: A
Step-by-step explanation: when Constructing a confidence interval, it is important to take note of the margin of error which is given by the formulae below
Margin of error = critical value × σ/√n.
Where n is the sample size.
As we can see that the critical value is a constant and the population standard deviation.
Hence there is an inverse relationship between margin of error and sample size, which implies that a large sample size produces a small margin of error.
If the margin of error is small, it means the sample size will increase the like hood that the sample is a good representation of the population.
