5:04 93% The discrete random variable X has the probability distribution given by: 10 P(X = x) 0.2 0.1 0.4 2p a. Determine the following probability: P(X < 7) Provide the exact answer b. What is the expected value of the random variable X? Provide the exact answer c. What is the variance of the random variable X? Provide the exact answer *-2 d. Find the expectation of the random variable Y, where Y = Answer in exact fraction, or rounded to at least 4 decimal places.
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
Please answer c,d
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