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2 years ago

Find the slope and then write the equation Y=MX+B

Mathematics

1 answer:

timurjin [86]2 years ago

4 0

Answer:

y=2x+15

Step-by-step explanation:

Slope (m) = 20/10 = 2

y-intercept (b) = 15

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It is known that the length of time that people wait for a city bus to arrive is right skewed with mean 6 minutes and standard d

Natali [406]

Answer:

The standard deviation of the sampling distribution of the sample wait times is of 0.8 minutes.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30. Otherwise, the mean and the standard deviations holds, but the distribution will not be approximately normal.

Standard deviation 4 minutes.

This means that $\sigma = 4$

A sample of 25 wait times is randomly selected.

This means that $n = 25$

What is the standard deviation of the sampling distribution of the sample wait times?

$s = \frac{4}{\sqrt{25}} = 0.8$

The standard deviation of the sampling distribution of the sample wait times is of 0.8 minutes.

4 0

2 years ago

Sally pays $38 per hour for dance class after paying the enrollment fee of $100. Identify the constant of proportionality that r

lakkis [162]

C because y=mx+b and the constant is the slope which is m. The equation is y =38x+100

8 0

2 years ago

During a rainstorm, 2 inches of rain fell in 5 hours. At this rate, how many hours will it take for 20 inches of rain to fall?

butalik [34]

Answer:

50 hours

Step-by-step explanation:

7 0

2 years ago

if a quantity increases by 25% and then decreases by 25%, were the results of the original quantity explain

Aleonysh [2.5K]

What is your question
asking if the results of increasing and then decreasing will be the same???
because if its that then no

6 0

2 years ago

Read 2 more answers

What is the area of the rectangle?<br> [1] ft2

Olenka [21]

A^2+b^2=c^2 (Pythagoran theorem)

-> 30^2 + length^2 = 78^2
-> length = √6084-900 = <span>√5184 = 72 ft

=> area = length x width = 72 x 30 = 2160 ft^2</span>

3 0

3 years ago