Math Problem Statement

Solution

To solve the problem using the provided density function, let's follow these steps:

  1. Identify the relevant interval and height:

    • The density function is a uniform distribution over the interval [2, 7].
    • The height of the density function (which represents the probability density) is 0.2.
  2. Calculate the probability P(X<4.52)P(X < 4.52):

    • This is the area under the density function from X=2X = 2 to X=4.52X = 4.52.
  3. Compute the area:

    • The base of the rectangle (interval length) is 4.522=2.524.52 - 2 = 2.52.
    • The height of the rectangle is given as 0.2.
    • Therefore, the probability is given by: P(X<4.52)=base×height=2.52×0.2=0.504P(X < 4.52) = \text{base} \times \text{height} = 2.52 \times 0.2 = 0.504
  4. Round the answer to two decimal places: P(X<4.52)0.50P(X < 4.52) \approx 0.50

So, the probability P(X<4.52)P(X < 4.52) is approximately 0.50.

Would you like more details or have any further questions? Here are some related questions you might find useful:

  1. What is the probability P(X>5)P(X > 5) given the same density function?
  2. How would you calculate the probability P(3<X<6)P(3 < X < 6) using this density function?
  3. What is the cumulative distribution function (CDF) for this uniform distribution?
  4. How would the probability change if the interval for the density function was [1, 8]?
  5. What is the expected value (mean) of this distribution?

Tip: The area under the curve of a probability density function (PDF) for continuous distributions represents the probability for a given interval.

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Math Problem Analysis

Mathematical Concepts

Probability Theory
Uniform Distribution

Formulas

Probability Density Function (PDF) for uniform distribution

Theorems

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Suitable Grade Level

Advanced High School / Undergraduate