## Math Problem Statement

a) consider a t distribution with 21 degrees of freedom. Compute P(-1.94<t<1.94). round your answer to at least three decimal places. P(-1.95<t<1.94)=

## Solution

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## Math Problem Analysis

### Mathematical Concepts

Statistics

t-Distribution

Probability

### Formulas

P(-1.94 < t < 1.94) = P(t < 1.94) - P(t < -1.94)

Symmetry of t-distribution: P(t < -x) = 1 - P(t < x)

### Theorems

Properties of the t-distribution

Symmetry of the t-distribution

### Suitable Grade Level

Undergraduate Statistics

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