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2 years ago

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