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ElenaW [278]
3 years ago
5

Someone plz help me :(.

Mathematics
1 answer:
mina [271]3 years ago
8 0

Answer:

I think it is B, sorry if I'm wrong

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Suppose 40% of all college students have a computer at home and a sample of 64 is taken. What is the probability that more than
Art [367]

Answer:

0.13093

Step-by-step explanation:

Give. That :

Population mean = 40% = 0.4

Sample size (n) = 64

Probability that more than 30 have computer at home

Mean = np = 64 * 0.4 = 25.6

Standard deviation = sqrt(n*p*(1-p)) = 3.919

P(x > 30)

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (30 - 25.6) / 3.919 = 1.1227353

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6 0
2 years ago
X/3 = 2,how to calculate x? <br> please help me
liq [111]

Given:

  • \sf  \dfrac{x}{3}  = 2

Solution:

\longrightarrow \sf \dfrac{x}{3}  = 2 \\  \\  \sf\longrightarrow x = 3 \times 2 \\  \\  \longrightarrow   {\underline{\boxed{ \pink {\sf{x = 6}}} }}\\  \\

4 0
2 years ago
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Lera25 [3.4K]
I believe it’s 6ft in width 12ft in length and 5ft in height. Not positive but I hope it helps
6 0
3 years ago
Which line is parallel to line r?<br><br> line p<br> line q<br> line s<br> line t
MAVERICK [17]

Keywords:

<em>lines, plane, parallel </em>

For this case we have five lines in a plane, and they ask us to find which of the four remaining lines is parallel to the line "r". We know that, by definition, two lines are parallel when they meet in the same plane, they maintain a certain distance between them, that is, if both prologue to infinity, they never intersect. Thus, the line parallel to line "r" must be line "s".

Answer:

The line parallel to the line "r" is the line "s"

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3 years ago
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Complete the pattern
Mademuasel [1]
38 x 1 = 1
38 x 0.1 = 3.8
38 x 0.01 = 0.38
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3 years ago
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