I need I will most definitely mark brain-iest ?!

3. The academic Quiz advisor needs to choose the top member to compete in a final challenge. Tobin and Yolanda have approximatel

Natali [406]

Answer:

The safer option, would be to pick Yolanda, because of the lower risk involved. It is certain that she would score in and around the mean.

But, if one is a betting man, the rewards from Tobin performing to the favourable side of his wider range of possible scores would guarantee a higher mark. Although, there's an equal likelihood that Tobin's scores might tilt towards the unfavourable side.

Step-by-step explanation:

The mean absolute deviation (MAD) and the inter quartile range (IQR) both serve to highlight the spread variables in the dataset about the mean.

The higher their respective values, the more the variation of the variables in the dataset. It means

A high MAD and IQR indicate that the possible different obtainable scores from the candidate can take on values from extreme lows to extreme highs all around the mean, a wider range of possible scores.

This translates to the fact that Tobin's scores, which have a clearly superior MAD and IQR, have a higher risk attached to them. It is possible the scores in the exam take on values much lower than the mean or values much higher than the mean.

Yolanda on the other hand, has a lower MAD and IQR, thereby indicating a narrower range of possible values for her scores. This means that her scores will hover in and around the mean without big variations.

Yolanda's scores have a lower risk attached to them as it is guaranteed thay she would score close to their common mean score.

But Tobin's scores have a high risk and high reward attached to them. Going with Tobin would mean that one is ready to expect a score from a wider range about the mean.

Tobin could spectacularly post scores that are very much more than their mean score or post scores that are way worse than their mean score.

So, the choice of who to pick depends on which approach one takes to this subject matter.

Minimum Highest loss would mean Yolanda is safer and a better option.

Maximim Highest gain would mean Tobin is worth the risk and might be a better option.

Hope this Helps!!!

5 0

3 years ago

Type the correct answer in each blank. Use numerals instead of words. If necessary, use / for the fraction bar(s). John hosts an

Law Incorporation [45]

We know that John is hosting an art workshop on the weekends. He has an average of 14 students in each session and charges a fee of $12 per session. . He estimates that for every $2 increases in the fee, the average number of students reduces by 1.

Therefore, we can conclude that his revenue is $14 * 12$ or $168$ bucks.

The session price goes up in a pattern of 2.

For example, from 12 the session price goes to 14, 16, 18 and so on.

As each jumps goes by 2, the amount of students drop by 1.

(i.e from 14 students the number decreases to 13, to 12 and so on.)

As we can see the revenue begins at 168 and continues upward until it reaches 200 dollars and then starts to descend.

This indicates that the U-turn or vertex of the revenue function is approximately 4200, where h represents 4, and k is 200.

To solve we can use Parabola.

⇒ Parabola: any point is at an equivalent separation from:

a settled point (the concentration ), and

a settled straight line (the directrix )

____________________________________________________

$f (x) = a(x - h)^2 + k$ , where (h, k) is the vertex of the parabola.

⇒ $\left \{ {{y=192} \atop {x=2}} \right.$

⇒ $192 = a(2-4)^2+200$

⇒ $-8=a(-2)^2$

⇒ $-8=a*2^2$

⇒ $-8=a*4$

⇒ $-8=4a$

⇒ $-\frac{8}{4} = \alpha$

⇒ $\alpha = -2$

Now lets do the final step: Simplifying

$y-2(x-4)^2+200$ 

$y=-2(x^2-8x+16)+200$

$y=-2x^2+16x-32+200$

$c(x) = -2x^2+16x+168$

3 0

4 years ago

Solve for x triangles

wel

Answer:

115

Step-by-step explanation:

180-50=130

130/2=65

180-65=115

4 0

3 years ago

(3 A sum of money doubles itself in 6 years. In how many years, it becomes 5 times?

elena-s [515]

Answer:

In 24 years.

Step-by-step explanation:

Let the sum of money be 100 which amounts to 200 ( doubles itself ) in 6 years time. Interest on 100rs. Is 100. Putting the following in simple interest formula. You get :

$100=\dfrac{100\times R\times 6}{100}\\\\R=\dfrac{100}{6}$

Now when 100 will become 5 times i.e 500 the interest will be 400rs.

Putting in simple interest formula:

$400=\dfrac{\dfrac{100\times 100}{6T}}{100}\\\\T=\dfrac{2400}{100}\\\\=24\ yrs$

So, in 24 years, it will become 5 times.

4 0

3 years ago

What is the area of a 45 degree sector of a circle with a radius of 12in.? Use 3.14 and round the answer to the nearest square i

Arturiano [62]

Answer:

57 square inches

Step-by-step explanation:

First consider that a 45 degree sector of a circle is 45/360 of the area of the full circle from which it is cut. This comes out to 1/8 of the full circle area.

The area of a circle of radius 12" is A = π(12 ")^2, or A = 144π.

The area of the sector in question is 1/8 of that, or

A = (1/8)(144π), or A = 18π square inches, or approximately 57 square inches.

5 0

4 years ago