The Number of Typographical Errors in a Document Follows a Poisson

question 53

Multiple Choice

The number of typographical errors in a document follows a Poisson distribution with a mean of 4 errors per page. Let X represent the number of errors on 2 pages. Find $\sigma _ { x }$

• A) 3.8
• B) 2.8
• C) 8
• D) 4

Understand the concept and application of Chi-Square tests for independence and goodness-of-fit.

Calculate and interpret P-values in hypothesis testing.

Identify whether variables are independent or associated based on statistical evidence.

Apply hypothesis testing to real-world situations involving categorical data.

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Definitions:

Calculate

To determine mathematically the amount or number of something.

Result

The outcome or consequence of an action, experiment, or process.

Numerator

The top number in a fraction that indicates how many parts of the whole or group are being considered.

Denominator

The bottom number in a fraction, indicating into how many parts the whole is divided.