Answer:
<em>Why does thou post a question.....</em>
<em>Only to answer it later?</em>
Step-by-step explanation:
z-score is:
z = (x − μ) / σ
For the four students:
z = (1990 − 1548) / 319 = 1.39
z = (1280 − 1548) / 319 = -0.84
z = (2240 − 1548) / 319 = 2.17
z = (1450 − 1548) / 319 = -0.31
z-scores are considered significant if they are less than -2 or greater than 2. So the third student's score is unusual.
Answer:
f(-2)=6. True
f(0)=4. True
f(-3)=f(3). True
f(-4) < f(0). False
3f(3) > 20. True 3f(3) = 3(9/2+4) = 3(4.5+4) = 3(8.5) = 25.5
9\16 + 3\4= 1 5/16for 1 and this answer is 1 5/16
7 1/3 - 9 = 1 2/3 for 2 so the answer is 1 2/3
I think let me know
Answer:
The answer is Y.
Step-by-step explanation:
