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mel-nik [20]
2 years ago
12

Noemi flips a coin three times and get tails, tails and heads in that order

Mathematics
1 answer:
Maksim231197 [3]2 years ago
5 0
I think it’s B............
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Which of the following is a disadvantage to using graphs and diagrams? Check all that apply.                                    
forsale [732]
The first answer is C. The information may be in a form that is difficult to use. And the second on is D. They must always be used with an equation.
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3 years ago
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The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The
zavuch27 [327]

The standard deviation of the frequency distribution is 5.54

<h3>How to determine standard deviation?</h3>

The table of values is given as:

x     f(x)

0-3 13

4-7  13

8-11 10

12-15 11

16-19 0

20-23 3

Rewrite the table by calculating the class midpoints:

x     f(x)

1.5 13

5.5  13

9.5 10

13.5 11

17.5 0

21.5 3

Start by calculating the mean using:

\bar x = \frac{\sum fx}{\sum f}

This gives

\bar x = \frac{1.5 * 13 + 5.5 * 13 + 9.5 * 10 + 13.5 * 11 + 17.5 * 0 + 21.5 * 3}{13 + 13 + 10 + 11 + 0 +3}

Evaluate

\bar x = 7.98

The standard deviation is then calculated as:

\sigma = \sqrt{\frac{\sum f(x - \bar x)^2}{\sum f }}

So, we have:

\sigma= \sqrt{\frac{13 * (1.5 - 7.98)^2 + 13  * (5.5 - 7.98)^2 + (9.5 - 7.98)^2 * 10 + (13.5 - 7.98)^2 * 11 + (17.5 - 7.98)^2 * 0 + (21.5 - 7.98)^2 * 3}{13 + 13 + 10 + 11 + 0 +3}}

Evaluate

\sigma= \sqrt{30.6496}

Solve

\sigma= 5.54

Hence, the standard deviation is 5.54

Read more about standard deviation at:

brainly.com/question/15858152

#SPJ1

7 0
1 year ago
Write an equation for a line perpendicular to y= -4x +2 and passing through the point (12,6)
gtnhenbr [62]

Answer:

y=\frac{1}{4} x+3

Step-by-step explanation:

5 0
3 years ago
Here goes another question lol oops
Murrr4er [49]
Student 1 and 3.
- (5r - 3s + 1) =  - 5r + 3s - 1
Move the negative into the brackets,
positive becomes negative while two negatives make a positive.
3 0
3 years ago
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A blueprint of a sailboat has a sail in the shape of a
Anni [7]

Answer:

Step-by-step explanation:

T is at (1,2)

where x = 1 and y = 2

so if it's reflected over the x axis then it moves down wards.  to  (1, -2)

4 0
3 years ago
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