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3 years ago

I need help now assssssap

Mathematics

2 answers:

Andreyy893 years ago

7 0

Answer:

assssssssssssssap

Step-by-step explanation:

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Anit [1.1K]3 years ago

5 0

Yo yo yo What’s popping

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A sample of 5 strings of thread is randomly selected and the following thicknesses are measured in millimeters. Give a point est

liq [111]

Answer:

$s^2 = \frac{(1.48-1.502)^2 +(1.45-1.502)^2 +(1.54-1.502)^2 +(1.52-1.502)^2 +(1.52-1.502)^2}{5-1} =0.00132$

And for the deviation we have:

$s= \sqrt{0.00132}=0.0363$

And that value represent the best estimator for the population deviation since:

$E(s) =\sigma$

Step-by-step explanation:

For this case we have the following data:

1.48,1.45,1.54,1.52,1.52

The first step for this cae is find the sample mean with the following formula:

$\bar X =\frac{\sum_{i=1}^n X_}{n}$

And replacing we got:

$\bar X= \frac{1.48+1.45+1.54+1.52+1.52}{5} = 1.502$

And now we can calculate the sample variance with the following formula:

$s^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2 = \frac{(1.48-1.502)^2 +(1.45-1.502)^2 +(1.54-1.502)^2 +(1.52-1.502)^2 +(1.52-1.502)^2}{5-1} =0.00132$

And for the deviation we have:

$s= \sqrt{0.00132}=0.0363$

And that value represent the best estimator for the population deviation since:

$E(s) =\sigma$

4 0

3 years ago

Read 2 more answers

What type of graph displays information by using a column vertically or horizontally? A) Pictograph B) Scatterplot C) Bar Graph

suter [353]

I think it's the bar graph.

Hope this helps !

Photon

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3 years ago

PLZ HELP ME I WILL BRAINLIST YOU

AURORKA [14]

Answer:

B. 15 $units^{2}$

Step-by-step explanation:

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Each year, Sandy measures the height of a tree growing in her yard. The graph shows the yearly height. Choose any two points on

inna [77]

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4.513451241 sq feet wide x 12.41255213 sq feet

Step-by-step explanation:

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Chick-fil-a found out their most popular items in their combo meals . They found that the Original Chicken Sandwich was ordered

Semenov [28]

Answer:

13/20 probability

Step-by-step explanation:

it starts out as 65/100 then you simplify to get 13/20

hope this helps btw chick fil a is the best!

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3 years ago