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vodomira [7]
3 years ago
12

I need answers please ;-; i HATE MAAAAAAAAAAAAAAAATH

Mathematics
2 answers:
gogolik [260]3 years ago
7 0
Y=2x I hope this helps u
zlopas [31]3 years ago
6 0

Answer:

y = 2x

Step-by-step explanation:

if 13 inches of snow has fallen over 6.5 hours, you just divide 13 by 6.5 to get the amount that has fallen each hour (2 inches)

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A quadrilateral with only one pair of parallel sides is called a
shusha [124]
Its called a Rhombus
8 0
3 years ago
27÷624 as partial quotient
g100num [7]

Answer:

0.04326

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
As a rule of thumb, the sampling distribution of the sample proportion can be approximated by a normal probability distribution
Gennadij [26K]

As a rule of thumb, the sampling distribution of the sample proportion can be approximated by a normal probability distribution whenever the sample size is large.

<h3>What is the Central limit theorem?</h3>
  • The Central limit theorem says that the normal probability distribution is used to approximate the sampling distribution of the sample proportions and sample means whenever the sample size is large.
  • Approximation of the distribution occurs when the sample size is greater than or equal to 30 and n(1 - p) ≥ 5.

Thus, as a rule of thumb, the sampling distribution of the sample proportions can be approximated by a normal probability distribution when the sample size is large and each element is selected independently from the same population.

Learn more about the central limit theorem here:

brainly.com/question/13652429

#SPJ4

4 0
2 years ago
Wind farm configuration is a significant issue as the upwind turbines generate maximal energy while creating wakes for downwind
lord [1]

Answer:

a) [24.114,29.2858]

b) Since 30 is not in the 95% confidence interval, there is a 95% probability that 30 is not the true mean WEP

Step-by-step explanation:

a)

The 95% confidence interval is given by the interval

\bf [ \bar x-z^*\frac{s}{\sqrt n}, \bar x+t^*\frac{s}{\sqrt n}]

where

\bf \bar x= 26.7 is the sample mean  

s = 17.7 is the sample standard deviation  

n = 180 is the sample size

Since the sample size is big enough, we can use the Normal N(0,1) to compute \bf z^* and it would be 1.96(*) (a value such that the area under the Normal curve outside the interval [-z, z] is 5% (0.05))

and our 95% confidence interval is

\bf [26.7-1.96*\frac{17.7}{\sqrt{180}}, 26.7+1.96*\frac{17.7}{\sqrt{180}}]=\boxed{[24.114,29.2858]}

(*)

This value can be computed in Excel with

<em>NORMINV(1-0.025,0,1)</em>

and in OpenOffice Calc with

<em>NORMINV(1-0.025;0;1)</em>

b)

Since 30 is not in the 95% confidence interval, there is a 95% probability that 30 is not the true mean WEP

7 0
3 years ago
Solve for x -x=-5<br> How do you solve for x?<br> can it remain negative ?
Svet_ta [14]
<span>Solve for x
-x=-5

multiply both sides by (-1)
</span>-x (-1) =-5 (-1)
simplify
x = 5

answer is 5 (positive 5)
4 0
3 years ago
Read 2 more answers
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