<h2>what is the equation so i could answer it </h2>
Answer:
a) Scores of 2 and higher are significantly high
b) Scores of -2 and lower are significantly low
c) Scores between -2 and 2 are not significant.
Step-by-step explanation:
Mean = 0
Standard deviation = 1
a. significantly high (or at least 2 standard deviations above the mean).
2 standard deviations above the mean is:
0 + 1*2 = 2
So scores of 2 and higher are significantly high
b. significantly low (or at least 2 standard deviations below the mean).
2 standard deviations below the mean is:
0 - 1*2 = -2
So scores of -2 and lower are significantly low
c. not significant (or less than 2 standard deviations away from the mean).
2 standard deviations above the mean is:
0 + 1*2 = 2
2 standard deviations below the mean is:
0 - 1*2 = -2
So scores between -2 and 2 are not significant.
Answer:
Step-by-step explanation:
<u>Step 1: Set y to 15 and solve</u>
<u />
<em>Add 10 to both sides</em>
<em />
<em>Multiply both sides by 5</em>
<em />
Answer:
.45 * 120 = 54
.072 * 54 = 3.888
54 + 3.888 = 57.888= $57.89
