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fgiga [73]
3 years ago
7

An examination consisting of ten true-or-false questions was taken by a class of 100 students. The probability distribution of t

he random variable X, where X denotes the number of questions answered correctly by a randomly chosen student, is represented by the accompanying histogram. The rectangle with base centered on the number 8 is missing. What should be the height of this rectangle?

Mathematics
1 answer:
Grace [21]3 years ago
4 0

Answer:

The height of this rectangle is 8/10

Step-by-step explanation:

Please see attachment .

You might be interested in
a number rounded to the nearest hundred thousand is 400,000. The same number rounded to the nearest ten thousand is 350,000. Wha
spayn [35]

Answer:

360000

Step-by-step explanation:

Well, we know the number must be above 350,000 because it was rounded up to 400,000. In order for the number to round down to 350,000 the number would have to be between 350,000-354999. So, the number could be any number in between those two numbers.

For example: The number COULD be 351,000 but, that is not the only possible answer.

but the answer would be 360000.

4 0
3 years ago
Six friends share 2 pizzas equally. How much of a pizza does each friend get?
GarryVolchara [31]

each one gets 2 and their will be 4 slices left

6 0
4 years ago
6/a=b/8 ,what happens to the value of b as the value of a increases?
mash [69]

Answer:

It gets smaller.

Step-by-step explanation:

You can multiply by 8 to put the equation in the form ...

... b = 48/a

which is the form indicating <em>b</em> is inversely proportional to <em>a</em>. Thus, when <em>a</em> increases, <em>b</em> decreases, and vice versa.

6 0
3 years ago
Answer these questions and i’ll give 20 points and brainliest answer!!
Goryan [66]

Answer:

3.  1/2                4.    13/20

Step-by-step explanation:

Those are the only one I know, sorry :/

6 0
4 years ago
What is the longest flagpole (in whole feet) that could be shipped in a box that measures 1ft by 2 ft by 12 ft?
nexus9112 [7]
Consider a pole running from one corner to the farthest corner of a box. 
In 3D space the start of the pole would be at (0,0,0).
The endpoint would be at (12,2,1).
Use the distance formula:
D^2 = (x1-x2)^2 + (y1-y2)^2 + (z1-z2)^2
D^2 = (12-0)^2 + (2-0)^2 + (1-0)^2
D^2 = 144 + 4 + 1
D^2= 149
D = sqrt (149) 
D = (approx.) 12.21 ft
D = 12 ft

Have a nice day :D
5 0
3 years ago
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