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ANEK [815]
3 years ago
11

pt) A jar contains jelly beans that are red, yellow, blue, and purple. Several people reach in and grab handfuls of jelly beans,

then collectively tally the number of each color: 15 red, 20 yellow, 12 blue, and 8 purple. If someone pulls out 22 jelly beans, about how many would you expect to be yellow?
Mathematics
2 answers:
yKpoI14uk [10]3 years ago
5 0
Asuume that the distribution in the small sample is representative of the whole. We can first compute the fraction of yellow in the sample:

Y=\frac{y}{total} = \frac{y}{r+y+b+p} = \frac{20}{15+20+12+8}=\frac{20}{55}=\frac{4}{11}

We can tehen use this fractino to compute the expected number of yellow in a sample of 22 total beans:

Y_{22} = 22 \times \frac{4}{11} = 7.999999

There will be about 8 yellow beans. 
natima [27]3 years ago
4 0

Answer:

You can expect 8 yellow jelly beans.

Step-by-step explanation:

The ratio of yellow jelly beans to the total amount is:

20 : 55

If you want find the rate of 20 yellow jelly beans to the total amount, you would have to divide:

20 / 55 = 0.36363636 (long series of number continues)

Now that you have the rate of yellow jelly beans, you can use that rate to find the estimated amount of yellow jelly beans in a total of 22:

0.36363636 * 22 = 8

Hope this helped :))

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Write an equation of the line that passes through 3,1 and 0,10
elena-14-01-66 [18.8K]

Answer:y = -3x + 10

Step-by-step explanation:

To find an equation of a line that passes through two points, we have to first find the slope between the two equation. We can do this by using the slope formula:

where (x₁, y₁) and (x₂, y₂) are the two points that we are finding the slope between.

Lets make (x₁, y₁) equal to (0, 10) and (x₂, y₂) equal to (3, 1). Now we plug them into the slope formula:

So the slope between the two points is -3.

From here, I would normally take one of the points given to us and plug in the point and slope into the point-slope form of a line and then simplify until we get it in slope-intercept form. But if you look carefully, the y-intercept is given to us as the point (0, 10). So we now know that the y-intercept of the line is 10. We can now take the y-intercept and the slope and plug it into the slope-intercept form of a line to get out equation:

y = mx + b

plug in -3 for m (the slope) and 10 for b (the y-intercept)

y = -3x + 10

So now we have our equation.

I hope you find my answer and explanation helpful. Happy studying. :)

3 0
3 years ago
Simplify: 7ax3+5x2a-9a÷3<br>​
posledela
1)Calculate the product:
21a + 10a - 3a
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8 0
3 years ago
Which set of values make the inequality true?
Ne4ueva [31]
The answer for your specific question is G.
7 0
3 years ago
The choir sells tickets to its performances for an assortment of prices and gives some tickets away. The choir
galina1969 [7]

The least square regression equation for the information provided is y = 9.72x - 40.776

<u>The general equation of a regression model can be expressed thus</u>:

  • y = bx + c

  • Slope, b = r(Sy/Sx)

Calculating slope, b :

  • b = 0.81(177.6 / 14.8) = 9.72

<u>Plugging the values of b, y and x into the equation in other to calculate c</u> :

696 = 9.72(75.8) + c

696 = 736.776 + c

c = 696 - 736.776

c = - 40.776

Therefore, the linear regression model can be expressed as : y = 9.72x - 40.776

Learn more :brainly.com/question/18405415

3 0
2 years ago
Erin caught 8 more fish than Juan caught
Gennadij [26K]

Answer:

Second option: Equation, because 8 plus the fish that Juan caught equals  the fish that Erin caught

Step-by-step explanation:

You can for sure make an equation, all you need is to have variables and that's allowed in this case.

E=J+8

E=Erin J=Juan

7 0
3 years ago
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