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laila [671]
3 years ago
15

The histogram below displays the distribution of 50 ages at death due to trauma (unnatural accidents and homicides) that were ob

served in a certain hospital during a week. Which of the following are the appropriate numerical measures to describe the center and spread of the above distribution?
a. The mean and the median
b. The IQR and the standard deviation
c. The mean and the standard deviation
d. The median and the IQR
Mathematics
1 answer:
sattari [20]3 years ago
5 0

Answer:

d. The median and the IQR

Step-by-step explanation:

The median separates the upper half from the lower half of a set. So 50% of the values in a data set lie at or below the median, and 50% lie at or above the median. This means that the median is the appropriate numerical measure to describe the center.

The first quartile(Q1) separates the lower 25% from the upper 75% of a set. So 25% of the values in a data set lie at or below the first quartile, and 75% of the values in a data set lie at or above the first quartile.

The third quartile(Q3) separates the lower 75% from the upper 25% of a set. So 75% of the values in a data set lie at or below the third quartile, and 25% of the values in a data set lie at or the third quartile.

The quartiles are used to measure the spread of a data-set.

The interquartile range(IQR), is Q3-Q1.

So the correct answer is:

d. The median and the IQR

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Lisa [10]

Answer:

∠3=95°

∠4=85°

Step-by-step explanation:

6 0
3 years ago
Point x is at 2/3 on a number line. On the same number line, point y is at the same distance from 0 as a point x, but has a nume
BaLLatris [955]

Answer:

<em>The denominator is 12</em>

\displaystyle y=-\frac{8}{12}

Step-by-step explanation:

<u>The Number Line</u>

We can represent any real number in a properly segmented line, where the zero-mark is the separation between positive numbers to its right side and negative numbers to the left side.

We are given the number x = 2/3. Since it's positive, its location lies to the right of the zero but before the 1 as shown in the figure below.

We want to locate a second point y at the same distance from 0 as the point x, so we have two options: y is the same as x, or y is negative at the same distance from zero. We chose the last option.

Its numerator must be 8, so we need to multiply it by 4. But we cannot alter the value of x, so we must also multiply the denominator by 4, which gives us the fraction 8/12, but recall it must be negative.  

\boxed{\displaystyle y=-\frac{8}{12}}

The denominator is 12

7 0
3 years ago
What is the value of (7-12)(-8-22)
Fed [463]

Answer:

The Answer to this problem is 150

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is 0.6144 divided by 1.6
sattari [20]
The answer is 0.6144÷1.6 =0.384
hope i help solving your question.

5 0
3 years ago
The variable Z is directly proportional to X, and inversely proportional to Y. When X is 3 and Y is 6, Z has the value 9.5. What
RideAnS [48]
Directly proportional to x

z=kx

And inversely proportional to y

z=kx/y  we are given the point (x,y,z) of (3, 6, 9.5) so

9.5=3k/6  now multiply both sides by 6

57=3k  divide both sides by 3

19=k so now that we know the constant of proportionality:

z=19x/y,  and we want to solve for z when x=8 and y=12 so:

z=19(8)/12

z=12 2/3  exact

z≈12.667  (rounded to the nearest thousandth)





7 0
3 years ago
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