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chubhunter [2.5K]
3 years ago
5

The histogram represents the distributions of essay scores for high school sophomores and juniors in a contest. Which statements

are true about the data used to create the histogram? Select three options.
The mean is the best comparison of the measures of center.


The juniors tended to have higher essay scores than the sophomores.


The medians of both data sets are equal.


The interquartile range is the best comparison of the measure of variability.


A histogram is the best way to show that both distributions are nearly symmetric.
Mathematics
2 answers:
Ket [755]3 years ago
8 0

Answer:

B,C, and E

Step-by-step explanation:

A histogram is a graphical illustration of information in bars of diverse heights. A histogram displays the shape and spread of continuous sample data. The true statements about the data essay scores for high school sophomores and juniors in a contest are; the juniors tended to have higher essay scores than the sophomores, the medians of both data sets are equal and the histogram is the best way to show that both distributions are nearly symmetric.

Likurg_2 [28]3 years ago
7 0

Answer:

bce

Step-by-step explanation:

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What is the solution to the equation? 13 3/4+x=7 1/4
oksano4ka [1.4K]

Answer:

x=-13/2

Step-by-step explanation:

13 3/4=55/4

7 1/4=29/4

---------------------

55/4+x=29/4

x=29/4-55/4

x=-26/4

simplify

x=-13/2

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4. If a Scooter goes 8 M/s, how fast does it go in KM/h?
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28.8 km/h

Step-by-step explanation:

I used the calculator, but I don't know any formulas for changing m/s km/h.

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2 years ago
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Jacob needs less than 5 C's on his transcript to qualify for UGA. He already has 1 C. At most, how many more C's can he get and
victus00 [196]
<span>C' x + 1 < 5 ; x < 4 ...............................................................................................</span>
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3 years ago
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Which values of x would make a polynomial equal to zero if the factors of the polynomial were (x-5) and (x-6)
meriva

x-5= 0

move -5 to the other side

sign changes from -5 to +5

x-5+5= 0+5

x= 5

x-6= 0

x-6+6= 0+6

x= 6

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2 years ago
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Vail Resorts pays part-time seasonal employees at ski resorts on an hourly basis. At a certain mountain, the hourly rates have a
notsponge [240]

Answer:

z=0.842

And if we solve for a we got

\mu=13.16 +0.842*3=15.69

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the hourly rates of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu,3)  

For this part we want to find a value a, such that we satisfy this condition:

P(X>13.16)=0.20   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.80 of the area on the left and 0.20 of the area on the right it's z=0.842. On this case P(Z<0.842)=0.8 and P(z>0.842)=0.20

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=0.842

And if we solve for a we got

\mu=13.16 +0.842*3=15.69

3 0
2 years ago
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