Two number cubes are rolled what is P(odd and even)

2 answers:

6 0

P(odd and even):

P(odd): HINT: Since it's 2 cubes there are double the odd numbers(1,1,3,3,5,5)
6/12=1/2
P(even):6/12=1/2
After you have both of the probabilities, you multiply them.
1/2*1/2=1/4 or 0.25

ddd [48]4 years ago

5 0

Since there are exactly three odd numbers and three even numbers on a standard number cube. The probability of rolling two odds is 50%. Since there 6 numbers on a cube, three are odd. With two number cubes there are 12 numbers and six of them are odd, which makes is a 6/12 probability which alo equals 50%. The same goes for even which means there is a 50/50 chance of getting two evens or two odds.

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Answer:

$x = \frac{46}{3}$

Step-by-step explanation:

A straight angle is equal to 180° degrees. Since both 9x +4 and 3x -18 is supplementary then I can make this claim below

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All we have to do now is to solve for x

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The probability density function of the time to failure of an electronic component in a copier (in hours) is f(x) for Determine

salantis [7]

The question is incomplete. Here is the complete question.

The probability density function of the time to failure of an electronic component in a copier (in hours) is

$f(x)=\frac{e^{\frac{-x}{1000} }}{1000}$

for x > 0. Determine the probability that

a. A component lasts more than 3000 hours before failure.

b. A componenet fails in the interval from 1000 to 2000 hours.

c. A component fails before 1000 hours.

d. Determine the number of hours at which 10% of all components have failed.

Answer: a. P(x>3000) = 0.5

b. P(1000<x<2000) = 0.2325

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Step-by-step explanation: <em>Probability Density Function</em> is a function defining the probability of an outcome for a discrete random variable and is mathematically defined as the derivative of the distribution function.

So, probability function is given by:

P(a<x<b) = $\int\limits^b_a {P(x)} \, dx$