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olga nikolaevna [1]
4 years ago
8

Slck leave A company decides to investigate the amount of sick leave taken by its employees. A sample of eightemployees yields t

he following numbers of days of sick leave taken in the past year:a. Find and interpret the range.b. Find and interpret the standard deviation 5.c. Suppose the 6 was incorrectly recorded and is supposed to be 60. Redo parts a and b with the correct data anddescribe the effect of this outlier.
Mathematics
1 answer:
Lubov Fominskaja [6]4 years ago
3 0

Answer: idk

Step-by-step explanation:

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The table shows Alice's age (a) and her daughter Martha's age (m). Complete the table and the equation.
Viefleur [7K]

Answer:

i think 48

Step-by-step explanation:

7 0
3 years ago
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Prove that sin20 sin40 sin60 sin80=3/16
xeze [42]
Sin 20° · sin 40° · sin 80° = 1/2 ( cos 20° - cos 60° ) · sin 80° =
= 1/2 ( cos 20° sin 80° - cos 60° sin 80° ) =
= 1/2 ( (sin 100° + sin 60°)/2 - 1/2 sin 80° )=            ( sin 100° = sin 80° )
= 1/2 · ( 1/2 sin 60° ) = 1/4 sin 60° = √3 / 8
sin 60° = √ 3/2
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3 0
3 years ago
Suppose that administrators at a large urban high school want to gain a better understanding of the prevalence of bullying withi
RSB [31]

Answer:   (0.273,\ 0.783)

Step-by-step explanation:

Given : Total number of students who are asked to complete a survey anonymously : n= 240

Number of students

The proportion report that they have experienced bullying =54

Then , the proportion that students have experienced bullying =p=\dfrac{54}{240}=0.225

Significance interval : \alpha=1-0.95=0.05

Critical value : z_{\alpha/2}=1.96

The confidence interval for the true proportion is given by :-

p\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\=0.225\pm (1.96)\sqrt{\dfrac{(0.225)(1-0.225)}{240}}\\\\\approx0.225\pm0.0528\\\\=(0.255-0.528,\ 0.255+0.528)\\\\=(0.273,\ 0.783)

8 0
3 years ago
Which ratio is equivalent to 5:9?<br> 10:36<br> 10:27<br> 20:27<br> 20:36
blagie [28]

Answer:

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Step-by-step explanation:

to simplify a fraction you must divide both top and bottom by the same number and 20:36/ 4 equals 5:9

6 0
4 years ago
Which equation can be used to determine x in the system of linear equations below?
shusha [124]
-2x+14y=148*3x+5y=256
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7(x+y)=111x+185y=64
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104x=191y+64
x=191y+64/104
7 0
3 years ago
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