Answer:
To answer you question, we need the confidence internals formula, μ±Zc*(σ/
); N is the 20 psychology students, 0.5 the desviation standar and 4.3 is the medium based on national data, every fact in years.
Step-by-step explanation:
You need to consult the Zc value, you can find this table attached in this question; for 95%, we have a Zc value of 1.96.
Next step replace values: 4.3±1.96*(0.5/
) = 4.3±0.22 (rounding the result)
So, the confidence interval are:
4.08cm≤X≤4.52cm
Standard form is ax+by=c
normally a is positive and a and b are integres
y=mx+b
m=slope
b=yint
y=1/2x+3
minus 1/2 x both sides
-1/2x+y=3
times -2
x-2y=-6
Answer:
The area of a rectangle is one side times the other, and this is the same for two rooms. 2⋅8⋅12=192 square feet.
Step-by-step explanation:
Hoped I helped
-2 * (2x - y) / 3y - 5x
I don't really know how to explain it but this is the answer to wh<span>at expression is equivalent to (2/x-4/y)/(-5/y+3/x)</span>
The mode is the number that occurs the most so if you look at the numbers, thee only one that occurs twice is 5 so 5 is the mode.
