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nirvana33 [79]
2 years ago
11

A variable that can be discrete or continuous is​

Mathematics
2 answers:
ivann1987 [24]2 years ago
5 0

Answer:

A random variable can be discrete or continuous. A discrete random variable X has a countable number of possible values.p explanation:

Example: Let X represent the sum of two dice.

zubka84 [21]2 years ago
3 0
17 give or take a few lemons
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A square is put together by two triangles. The hypotenuse is 11 cm and width of 8 cm. find the height of triangle?
Aleks [24]
You can use the pythagorean theorem. Make sure that you put the measurements in the right places though. Since 11 is the measure of the hypotenuse, 11 has to be c. When you plug in the information that you have, it should look like this:
8^2 + b^2 = 11^2

Square 8 and 11. 
64 + b^2 = 121

Subtract 64 from 121
121 - 64 = 57

The new equation is:
b^2 = 57

Now take the square root of both sides to get b by itself. 
b = about 7.5

Answer: The height of the triangle is 7.5

***** Note: I rounded the answer ********************************************
4 0
3 years ago
Given f(x)= -4x-10 and f(x)=10. find x
yulyashka [42]

Answer:

x = - 5

Step-by-step explanation:

Given

f(x) = - 4x - 10 and f(x) = 10, the equate right sides, that is

- 4x - 10 = 10 ( add 10 to both sides )

- 4x = 20 ( divide both sides by - 4 )

x = - 5

4 0
3 years ago
A lot of 100 semiconductor chips contains 15 that are defective. three chips are selected at random from the lot without replace
Alex787 [66]
D=event that chip selected is defective
d=event that chip selected is NOT defective

Four possible scenarios for the first two selections:
P(DDD)=15/100*14/99*13/98=13/4620
P(DdD)=15/100*85/99*14/98=17/924
P(dDD)=85/100*15/99*14/99=17/924
P(ddD)=85/100*84/99*15/98=17/154

Probability of third selection being defective is the sum of all cases,
P(XXD)=P(DDD)+P(DdD)+P(dDD)+P(ddD)
=3/20


5 0
3 years ago
Which statement below is TRUE about |-2| and |-5|?
Ira Lisetskai [31]

|-5| is greater than |-2| because |-5| is 5 and |-2| is 2 and 5 is greater than 2.

6 0
2 years ago
Read 2 more answers
Under the normal curve, approximately what percent of scores fall between and -1 to +1 standard deviations around the mean?
prohojiy [21]
According to the empirical rule, roughly 68% of the scores fall between z = -1 and z = 1 

You can use a calculator to get a more approximate answer. If you have a TI calculator, you can use the "normalcdf" function to type in normalcdf(-1,1)
3 0
3 years ago
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