Answer:
-2.5
Step-by-step explanation:
Here in this question, we are interested in calculating the z-score for a student that had a particular mark at the test
To calculate the z-score, we need to use a mathematical formula
Mathematically;
z-score = (x - mean)/SD
From the question;
x = 76
mean = 86
standard deviation SD = 4
Plugging these values in the equation, we have;
z-score = (76-86)/4 = -10/4 = -2.5
Hey there!
-1 ¼ • 9
= - (4+1)/4 • 9
= -5/4 • 9
= -(5 × 9)/4
= <u>-</u><u> </u><u>4</u><u>5/4</u>
= <u>- 11.25</u>
Hope it helps ya!
Volume of sphere = 1766.25 cm^3
Step-by-step explanation:
The radius of sphere = 7.5 cm
Volume of sphere = ?
The formula used is:
Putting values:
So, Volume of sphere = 1766.25 cm^3
Keywords: Volume of sphere
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Answer:
0.9
Step-by-step explanation: