Answer:
(shown in picture)
Step-by-step explanation:
First, we need to calculate 80% of what they earned before:
50,000 * 0.80 = 40,000 per year
Social Security = 1200 a month x 12 months ( 1 year) = 14,400 per year
Additional income = 40,000 - 14,400 = $25,600 per year
Answers:
1. Switch sides
2. Subtract by 8 from both sides of equation.
3. Simplify.
4. Multiply by -1 from both sides of equation. (it's should be the reverse inequality).
5. Simplify.
6. Then you had to divide by 9 from both sides of equation.
7. Simplify.
8. Divide by the numbers.
9. Divide by the numbers.
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3.21 (I did in on a triangle calculator)
Answer:
Step-by-step explanation:
If repeated sample sizes of large sizes are taken at random, and proportion P is calculated for samples the sample mean will have a normal distribution irrespective of the original distribution.
In other words, the sample proportion will follow a normal distribution with mean = p-hat and std deviation =
This is a direct corrollary of central limit theorem for sample means.
Hence we have irrespective of sample size, sample proportion will have expected value same as p-hat.
So whether sample size is 500 or 100 the p hat will have the same distribution.