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Andreas93 [3]
3 years ago
13

A few probability questions. Quickly please :) I have tried to do them but seem to be unable to figure these 2 out.

Mathematics
1 answer:
Zepler [3.9K]3 years ago
4 0
1.choosing a red marble since the probability would be 7/12 but the blue would be 5/12 so red is most possible
2.the possibility of a red being chosen is 2/20=1/10
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A, B & C form the vertices of a triangle.
kirza4 [7]
<h3>Answer:  20.3</h3>

Work Shown:

tan(angle) = opposite/adjacent

tan(B) = AC/AB

tan(67) = x/8.6

8.6*tan(67) = x

x = 8.6*tan(67)

x = 20.2603303460843  ... make sure your calculator is in degree mode

x = 20.3  .... rounding to 3 significant figures

see diagram below

6 0
3 years ago
What is the formula for Slope-Intercept Form of the Line
Andrej [43]
It's not the slope-intercept form of the line. 

It's the slope-intercept form of the line's equation.

                 <em>  Y = mX + B</em>

'X' is the slope of the line

'B' is the y-intercept of the line
8 0
3 years ago
Read 2 more answers
A ________ is the complete collection of all measurements or data collected, whereas, a ________ is a subcollection of members s
telo118 [61]

Answer: Population and sample

Step-by-step explanation:

A population is the complete collection of all measurements or data collected, whereas, a sample is a subcollection of members selected from the complete collection

4 0
3 years ago
Read 2 more answers
There are 10 employees in a particular division of a company. Their salaries have a mean of 570,000, a median of $55,000,and a s
harkovskaia [24]

Answer:

a) $160,000

b) $55,000

c) $332264.804

Step-by-step explanation:

We are given that there are 10 employees in a particular division of a company and their salaries have a mean of $70,000, a median of $55,000, and a standard deviation of $20,000.

And also the largest number on the list is $100,000 but By accident, this number is changed to $1,000,000.

a) Value of mean after the change in value is given by;

     Original Mean = $70,000

       \frac{\sum X}{n} = $70,000  ⇒ \sum X = 70,000 * 10 = $700,000

   New \sum X after change = $700,000 - $100,000 + $1,000,000 = $1600000

  Therefore, New mean = \frac{1600000}{10} = $160,000 .

b) Median will not get affected as median is the middle most value in the data set and since $1,000,000 is considered to be an outlier so median remain unchanged at $55,000 .

c) Original Variance = 20000^{2} i.e.  20000^{2} = \frac{\sum x^{2} - n*xbar }{n -1}

    Original \sum x^{2} = (20000^{2} * (10-1)) + (10 * 70,000) = $3,600,700,000

    New \sum x^{2} = $3,600,700,000 - 100,000^{2} + 1,000,000^{2} = 9.936007 * 10^{11}  

    New Variance = \frac{new\sum x^{2} - n*new xbar }{n -1} = \frac{9.936007 *10^{11}  - 10*160000 }{10 -1} = 1.103999 * 10^{11}    Therefore, standard deviation after change = \sqrt{1.103999 * 10^{11} } = $332264.804 .

7 0
3 years ago
Helpp picture about will mark
dezoksy [38]

Answer:

36

Step-by-step explanation:

3*2=6

6^2 is 36

8 0
3 years ago
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