(4d⁵ - d³) + (d⁵ + d³ - 4)
4d⁵ + d⁵ - d³ + d³ - 4
5d⁵ - 4
Answer:
No because my brain doesn't work on math and I need help on solving inequalities
Answer:
my best guess is 2/13 because there are 2 red kings in the deck. I got the 13 because there are 13 different suits
Answer:
a)
b)
Step-by-step explanation:
Previous concepts
The expected value of a random variable X is the n-th moment about zero of a probability density function f(x) if X is continuous, or the weighted average for a discrete probability distribution, if X is discrete.
The variance of a random variable X represent the spread of the possible values of the variable. The variance of X is written as Var(X).
Solution to the problem
For this case we have defined the following random variable Y="number of moving violations for which the individual was cited during the last 3 years. "
And we have the distribution for Y given:
y 0 1 2 3
P(y) 0.6 0.2 0.15 0.15
Part a
For this case the expected value is given by:
And if we replace the values given we have:
Part b
For this case we have defined a new random variable representing a subcharge, and we want to find the expected amount for this random variable, using properties of expected value we have:
And we can find on this way:
And if we replace the values given we have:
And then replacing we got: