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1 year ago

In variables estimation sampling, the sample standard deviation is used to calculate the?

1 answer:

3 0

The sample standard deviation is used to calculate the determine the spread of estimates for a set of observations (i.e., a data set) from the mean (average or expected value).

<h3>What is sample standard deviation?</h3>

The spread of a data distribution is measured by standard deviation. The average distance between each data point and the mean is measured.

The sample standard deviation (s) is a measurement of the variation from the expected values and is equal to the sample variance's square root.

where

s = sample standard deviation

N = the number of observations

$xi$ = the observed values of a sample item

$\overline {x}$ = the mean value of the observations

Learn more about simple standard deviation, refer:

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Nataly [62]

Answer:

babysitting = $9

working at coffeehouse = $12

x = hours for babysitting

y = hours at coffeehouse

minimum = ≥

9x + 12y ≥ 240

Step-by-step explanation:

just a short note on which symbol you should use when you see these words in inequality questions:

i) use ≥

-more than or equal to

-not less than

-at least

-minimum

ii) use >

-more than

-greater than

iii) use ≤

-less than or equal to

-not more than

-at most

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iv) use <

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2 years ago

Robert says his better long jump was about 1 foot farther than May's better long up. Is he correct? Explain.

Alborosie

We need mor information to tell what there best long jumps are

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2 years ago

Read 2 more answers

Dan bought 8 shirts and 3 pants. Devonte bought 12 shirts and 5 pants. For each person, write a ratio to represent the number of

shutvik [7]

Answer:

Step-by-step explanation:

Dan bought 8 shirts and 3 pants. This means that the ratio representing the number of shirts to the number of pants that Dan bought is 8/3 = 2.67

Devonte bought 12 shirts and 5 pants. This means that the ratio representing the number of shirts to the number of pants that Devonte bought is 12/5 = 2.4

Therefore, they are not equivalent ratios because the relationship is not exactly the same.

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3 years ago

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Andrei [34K]

Answer:

from top to bottom 13

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2 years ago

Find an equation for the line that passes through the points(-4,-3)and(6,1).

jeyben [28]

Answer:

$2x - 5y = 7\:\:or\:\:y = \frac{2}{5}x - 1\frac{2}{5}$

Step-by-step explanation:

First, find the rate of change [slope]:

$\frac{-y_1 + y_2}{-x_1 + x_2} = m$

$\frac{3 + 1}{4 + 6} = \frac{4}{10} = \frac{2}{5}$

Then plug these coordinates into the Slope-Intercept Formula instead of the Point-Slope Formula because you get it done much swiftly. It does not matter which ordered pair you choose:

1 = ⅖[6] + b

2⅖

−1⅖ = b

y = ⅖x - 1⅖ >> Line in Slope-Intercept Form

If you need it written in Standard Form:

y = ⅖x - 1⅖

-⅖x -⅖x

_________

−⅖x + y = −1⅖ [We do not want fractions in our standard equation, so multiply by the denominator to get rid of it.]

−5[−⅖x + y = −1⅖]

2x - 5y = 7 >> Line in Standard Form

_______________________________________________

−3 = ⅖[−4] + b

−1⅗

−1⅖ = b

y = ⅖x - 1⅖ >> Line in Slope-Intercept Form

If you need it written in Standard Form:

y = ⅖x - 1⅖

-⅖x -⅖x

_________

−⅖x + y = −1⅖ [We do not want fractions in our standard equation, so multiply by the denominator to get rid of it.]

−5[−⅖x + y = −1⅖]

2x - 5y = 7 >> Line in Standard Form

** You see? I told you it did not matter which ordered pair you choose because you will ALWAYS get the exact same result.

I am joyous to assist you anytime.

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3 years ago