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3 years ago

14

The scatter plot shows the number of days that several homes have been for sale co.pared to the number of times the house has be

en viewed.

2 answers:

Mamont248 [21]3 years ago

7 0

Answer:

It would be the scattered pot - how many

Step-by-step explanation:

Phoenix [80]3 years ago

7 0

Two triangles are similar. Triangle ABC has side lengths of AB = 10, BC = 6, CA = 7. Triangle XYZ has a side length of XY = 8. Find YZ.

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F(x)= 1/2 square root of x-3 ... find y intercept

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Answer:

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Step-by-step explanation:

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3 years ago

A parking lot has three colors of cars parked in it. There are 120 white cars parked in the lot. There are 80 more red cars park

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The ratio should be 3:5:2

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2 years ago

Assume that a sample is used to estimate a population mean p. Use the given confidence level and sample data to find the margin

Charra [1.4K]

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2 years ago

20 divided by 4 - 5+12

likoan [24]

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Hope I Helped :D

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3 years ago

Read 2 more answers

A population is estimated to have a standard deviation of 9. We want to estimate the population mean within 2, with a 99% level

cupoosta [38]

Answer:

The sample required is $n = 135$

Step-by-step explanation:

From the question we are told that

The standard deviation is $\sigma = 9$

The margin of error is $E = 2$

Given that the confidence level is 99% then the level of significance is mathematically evaluated as

$\alpha = 100-99$

$\alpha = 1 \%$

$\alpha = 0.01$

Next we will obtain the critical value $\frac{\alpha }{2}$ from the normal distribution table(reference math dot armstrong dot edu) , the value is

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.05 }{2} } = 2.58$

The sample size is mathematically represented as

$n = [ \frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ]^2$

substituting values

$n = [ \frac{ 2.58 * 9 }{2} ]^2$

$n = 135$

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3 years ago