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3 years ago

1Find the median of 1.4, 0.9, 2.4, 3.5, 2

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

4 0

Step-by-step explanation:

We arrange the numbers in increasing order:

0.9, 1.4, 2, 2.4, 3.5

Since there are five terms, the median is the third term, which is 2.

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In a sample of 700 gas stations, the mean price for regular gasoline at the pump was $2.894 per gallon and the standard deviati

frez [133]

Answer:

$P(x < 2.892) = 4.36\%$

Step-by-step explanation:

Given

$N = 700$ --- Population

$\mu = 2.894$ -- Mean

$\sigma = 0.009$ --- Standard deviation

$n = 55$ -- Sample

Required: $P(x < 2.892)$

This question will be solved using the finite correction factor

First, calculated the z score

$z = \frac{x - \mu}{\sqrt{\frac{N -n}{N -1}} * \frac{\sigma}{\sqrt n}}$

$z = \frac{2.892 - 2.894}{\sqrt{\frac{700 -55}{700 -1}} * \frac{0.009}{\sqrt {55}}}$

$z = \frac{-0.002}{\sqrt{\frac{645}{699}} * \frac{0.009}{7.42}}$

$z = \frac{-0.002}{\sqrt{0.92} * \frac{0.009}{7.42}}$

$z = \frac{-0.002}{0.95917 * 0.0012129}$

$z = -1.71$

So:

$P(x < 2.892) = P(z < -1.71)$

Using z table

$P(x < 2.892) = 0.043633$

$P(x < 2.892) = 4.36\%$

3 0

3 years ago

Find the quotient. -300x5y4 ÷ xy2 -150 x6y6 -300 x6y6 300 x4y2 -300 x4y2

exis [7]

Answer:

d. -300 x4y2

Step-by-step explanation:

Here is the correct question: Find the quotient. -300x5y4 ÷ xy2

a. -150 x6y6

b. -300 x6y6

c. 300 x4y2

d. -300 x4y2.

Given: -300x5y4 ÷ xy2

Now, simplifying it

Using law of indices to solve it.

= $-300x^{5} y^{4} \div xy^{2}$

we know, $\frac{x^{m} }{x^{n} } = x^{m-n}$

= $-300x^{5-1} y^{4-2}$

= $-300x^{4} y^{2}$

Hence, the answer is $-300x^{4} y^{2}$

6 0

3 years ago

What is the value of x in the equation -2/5x-2=18 -50 –40 –8 –6

IgorC [24]

The answer to your question is -50.

5 0

4 years ago

5. 2x+y=3what does it equal to what does it equal to

Julli [10]

I’m pretty sure it’s 2x+y-3=0

5 0

3 years ago

Whats the pattern to find next number ?2,6,11,17,24,32

Agata [3.3K]

The difference between 32 and 24 is 8. and the difference between 24 and 17 is 7. so its going down by counting (8,7,6,5,4,3,2,1) numbers. so 2-3= -1

3 0

3 years ago

1Find the median of 1.4, 0.9, 2.4, 3.5, 2​

1Find the median of 1.4, 0.9, 2.4, 3.5, 2