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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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Lori works as a cartoonist for a teen magazine.The time she spent sketching is given by the equation m=12s, where mis the number
Vera_Pavlovna [14]

Answer:

Lori spends <u>9 minutes</u> on sketching \frac{3}{4}th of a sketch.

Step-by-step explanation:

Given equation:

m=12\ s

where m\rightarrow number of minutes Lori spends on sketching

and s\rightarrow number of sketches Lori makes.

We need to calculate the time spent by Lori in sketching \frac{3}{4} of a sketch.

So we know the value of  s=\frac{3}{4} as s represents number of sketches and in this situation Lori has sketched only a fraction of a painting.

So we plugin s=\frac{3}{4} in the equation and calculate m which is time spent by Lori sketching \frac{3}{4}th of a sketch.

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m=\frac{36}{4}

∴ m=9 minutes (Answer)

∴ Lori spends 9 minutes on sketching \frac{3}{4}th of a sketch.

5 0
3 years ago
PLEASE PLEASE PLEASE HELP, ILL GIVE 98 POINTS ( show your work)
VLD [36.1K]

Answer:

Step-by-step explanation:

there is a linear relationship

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3 0
3 years ago
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Answer:

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Step-by-step explanation:

8 0
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Answer:

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Step-by-step explanation:

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B) 3 divided by 9=0.33333333

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7 0
3 years ago
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