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Feliz [49]
2 years ago
12

Please help with question 4A,B please Thank you

Mathematics
1 answer:
mrs_skeptik [129]2 years ago
4 0
<h3>Given</h3>
  • C(t) = 40 cm + t·(2/5 cm/s) . . . circumference of a circle vs time
<h3>Find</h3>
  • dr/dt for radius r
  • r at t=4 seconds
<h3>Solution</h3>

The circumference and radius of a circle are related by

... C = 2πr

so the radius in terms of circumference is

... r = C/(2π)

... r(t) = (40 +0.4t)/(2π) = (1/π)(20 cm + 0.2t cm/s)

Then dr/dt is

... dr/dt = 0.2/π cm/s

And the radius at t=4 s is

... r(4) = (1/π)(20 + 0.2·4) cm

... r(4) = 20.8/π cm

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Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 11, Q1 at 22. 5
Slav-nsk [51]

The median, because the data distribution is skewed to the right.

Given that

The box plot with the following parameters:  

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Maximum value at 37.5.

According to the question

When a distribution has a longer tail to one of its sides, then it is said to be skewed.

Since the tail is longer to the left, it is said to be left-skewed.

The data distribution is skewed to the left because the median (34.5) is closer to the third quartile (36) than to the first quartile  (22.5).

For skewed data, we always prefer the median because it is less affected by the outliers and if the mean is chosen, the value of the mean is biased towards the side that has larger values while the median does not get affected by it. So, we choose the median.

For skewed distributions, the median is the best measure of center.

Hence, the median, because the data distribution is skewed to the right.

To know more about Mean click the link given below.

brainly.com/question/2508120

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2 years ago
In the polynomial below.
algol [13]

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3 0
2 years ago
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Allisa [31]
It should be 715, i don’t understand why that isn’t one of the choices.
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4 0
2 years ago
HELP ASAP!!!!
Dahasolnce [82]
Hey again!

The answers for your question is A; Positive, and C; no association

7 0
3 years ago
What is the median of 1,2,4,7,6,9
NNADVOKAT [17]

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median = 5

Step-by-step explanation:

1,2,4,6,7,9

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