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Bezzdna [24]
3 years ago
14

HELP! PROBABILITY!

Mathematics
2 answers:
andrew-mc [135]3 years ago
5 0

Answer:

Estimated probability P=\frac{5}{12}

Step-by-step explanation:

In this question Emil estimates the probability of 2 or more heads coming up in 3 coin flips.

He has a computer which randomly selects 0 or 1 three times, with 0 representing heads and 1 as tails.

From the results shown we will select the preferred events of getting 2 or more heads, means results having 2 zeros or more than 2 zeros.

Number of preferred events are = 5

And total events are = 12

Therefore estimated probability = P=\frac{\text{Preferred events}}{\text{Total events}}

Probability P=\frac{5}{12}

Therefore answer is P=\frac{5}{12}

saul85 [17]3 years ago
4 0
You are correct its 5/12
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Please help!!!
expeople1 [14]

Answer:

  1. b (x, x ­- 3, 0)
  2. d Infinite Solutions

Step-by-step explanation:

1. A graphing calculator or any of several solvers available on the internet can tell you the reduced row-echelon form of the augmented matrix ...

\left[\begin{array}{ccc|c}2&-2&-1&6\\-1&1&3&-3\\3&-3&2&9\end{array}\right]

is the matrix ...

\left[\begin{array}{ccc|c}1&-1&0&3\\0&0&1&0\\0&0&0&0\end{array}\right]

The first row can be interpreted as the equation ...

  x -y = 3

  x -3 = y . . . . . add y-3

The second row can be interpreted as the equation ...

  z = 0

Then the solution set is ...

  (x, y, z) = (x, x -3, 0) . . . . matches selection B

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2. The second equation is 2 times the first equation, so the system of equations is dependent. There are infinite solutions.

7 0
3 years ago
Julia and Rasheed are mixing yellow paint and blue paint to make green paint. The mixture needs to be 60% blue paint and 40% yel
statuscvo [17]

Answer:

They should use <u>1.2 gallons</u> of yellow paint.

Step-by-step explanation:

Given:

Julia and Rasheed are mixing yellow paint and blue paint to make green paint.

The mixture needs to be 60% blue paint and 40% yellow paint.

They need to make 3 gallons of the green paint.

Now, to find the quantity of yellow paint they should use.

As,

60% + 40% = 100%

So, we get the ratio of blue paint to yellow paint:

60:40

= \frac{60}{40}

= \frac{3}{2}

= 3:2.

Thus, the ratio of blue paint : yellow paint is 3:2.

<em>They need to make total 3 gallons of green paint.</em>

Now, to get the quantity of yellow paint:

\frac{2}{5}\ of\ 3\ gallons

=\frac{2}{5} \times 3

=\frac{6}{5}

=1.2\ gallons.

Therefore, they should use 1.2 gallons of yellow paint.

8 0
4 years ago
Bobby believes his video game scores are clustered closer to his median than Amelia's are to her median. Explain why you agree o
Greeley [361]

Answer: The answer Is Yes

Step-by-step explanation: Since his scores in the lower and upper quartile are smaller than Amelia's it it still closer to his median since it only takes a smaller amount to get to his median from either one of the quartiles.

5 0
3 years ago
The distance between adjacent wave crests is called:
DENIUS [597]
The answer is called a <span>Wavelength Hope I helped!</span>
5 0
4 years ago
how to calculate surface area of a donut shape, that is 1 inch wide, has a outer radius of 2.5 and a inner radius of 1.5
stiv31 [10]
Speed is 250 or 4.5=55.55555
8 0
3 years ago
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