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3 years ago

What are the more appropriate measures of center and spread for this data set? 5 8 10 14 24

Mathematics

2 answers:

Dima020 [189]3 years ago

6 0

Answer:

<h2>B. Better measure of center: the median.</h2><h2>D. Better measure of spread: the interquartile range (IQR).</h2>

Step-by-step explanation:

The median is a measure of central tendency. Specifically, it indicates the central value of a data set, the value that is at the exact center, that is the median. That's why the median is the best measure of center for a data set.

On the other hand, the interquartile range is the difference between the first quartile and the third quartile, that is, the first and last quartile, this difference represent better the spread, because it shows the variability of the data set. This variability measure makes the interquartile range the best option of represent spread.

julia-pushkina [17]3 years ago

5 0

Answer:

B. and D. is the answer.

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Find the line y=a+bxy=a+bx which best approximates the data points (−3,−5),(−2,−17),(−1,−26),(1,−51),(2,−65).

dimaraw [331]

Answer:

y=-11.88x-39.93

Step-by-step explanation:

Plot the data

$\begin{array}{cc}x&y\\-3&-5\\-2&-17\\-1&-26\\1&-51\\2&-65\end{array}$

on the coordinate plane using graphing calculator. Then use linear approximation y=ax+b and determine that a=-11.88, b=-39.93.

The line that best fits these data is

$y=-11.88x-39.93.$

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3 years ago

Suppose that the log-ons to a computer network follow a Poisson process with an average of 3 counts per minute. (a) What is the

vampirchik [111]

Answer: a) 0.333, b) 0.333 and c) 0.9986.

Step-by-step explanation:

Since we have given that

Average = 3 counts per minute = λ

a) What is the mean time between counts ?

Since it follows a Poisson Process, So,

$E[x]=\dfrac{1}{\lambda}=\dfrac{1}{3}=0.333$

(b) What is the standard deviation between counts ?

$\sigma=\dfrac{1}{3}=0.333$

If the average = 3 counts per minute.

Then, $P(X$

Hence, a) 0.333, b) 0.333 and c) 0.9986.

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3 years ago

1) A pair of snow boots at an equipment store in Big Bear costs $60. If there is a tax of 7% how much do you pay?

Vaselesa [24]

The answer will be 53.00 dollars

6 0

3 years ago

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I need help understanding #6

lord [1]

The length of any two sides of a triangle must be larger than the remaining side, otherwise you won't have a connecting triangle.

So if AB is the largest side, then AC needs to be greater than 2. And if AC is the largest side, AC must be less than 8. Which means the answer is B.

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3 years ago

A function of the form f(x) = aby is modified so that the b value remains the same but the a value is increased by 2.

stealth61 [152]

Answer:

A and C.

Step-by-step explanation:

It says that the a value increases by 2 but that still doesn't change the fact the graph is infinite. So the domain is still the same, and the range is still the same.

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2 years ago

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