Answer: x=316 and y=41
Step-by-step explanation:
1. x+y=357
2. x-y=41
3. x+y=357
<u>x-y=41</u>
x=316 y= 41
There is not enough information so this equation is an unsolvable.
You could figure out the equation if the 3 were M and M had a number but this is unsolvable. SORRY
Answer: the answer is x=3
Step-by-step explanation: let me know if u need to know how I got x=3
<h3>
Answer: -0.196</h3>
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Explanation:
We're conducting a one proportion Z test.
The hypothesized population proportion is p = 0.53, which is not to be confused with the p-value (unfortunately statistics textbooks seem to overuse the letter 'p'). Luckily this problem is not asking for the p-value.
The sample population proportion is
phat = x/n = 41/79 = 0.518987 approximately
The standard error (SE) is
SE = sqrt(p*(1-p)/n)
SE = sqrt(0.53*(1-0.53)/79)
SE = 0.056153 approximately
Making the test statistic to be
z = (phat - p)/(SE)
z = (0.518987 - 0.53)/0.056153
z = -0.19612487311452
z = -0.196
Which is approximate and rounded to 3 decimal places.
37 / 1/5 = 37 * 5 = 171 (answer)
