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zmey [24]
3 years ago
15

Given the mean 71.4 and sample standard deviation 11.5 what is the z-

Mathematics
1 answer:
Elenna [48]3 years ago
6 0

Answer: 1.18

Step-by-step explanation:

Z = (x - mean) / standard deviation

Z = (85 - 71.4) / 11.5

Z = 13.6 / 11.5 = 1.18

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=<span><span><span><span> −<span>d3^</span></span>+<span>3<span>d^2</span></span></span>+<span>23d</span></span>−<span>30</span></span></span>
<span>


</span>

6 0
3 years ago
What is 1 and 5/9 times 9
kolezko [41]
1 \frac{5}{9} * 9= 14

7 0
3 years ago
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Romashka-Z-Leto [24]
Use the quadratic formula to solve the equations . you will get the answers 
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4 years ago
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What is th he sum of the first seven terms of the series -3+6-12+24-...?
ohaa [14]

Answer:

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Step-by-step explanation:

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6+24+96-3-12-48-192=

126-255=

-129

Hope this helps!

5 0
3 years ago
A bag contains 5 yellow marbles, 7 pink marbles, and 3 purple marbles. Gordon selects a marble without looking. What is the prob
balu736 [363]
It is an 8/15 probability. there are 15 marbles total (5y+7p+3pl=15) 

5/15y, 7/15p, 3/15.

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