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StatisticsQ&A Libraryxx20202121222223232424F(x)F(x)242444995511Let xx be the ages of students in a class. Given the frequency distribution F(x)F(x)above, determine the following probabilities: (a) P(x=22)=P(x=22)=equation editorEquation Editor (b) P(x≤23)=P(x≤23)=equation editorEquation Editor (c) P(20≤x<22)=P(20≤x<22)=equation editorEquation EditorQuestion

Asked Sep 23, 2019

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xx | 2020 | 2121 | 2222 | 2323 | 2424 |

F(x)F(x) | 2424 | 44 | 99 | 55 | 11 |

Let xx be the ages of students in a class. Given the frequency distribution F(x)F(x)above, determine the following probabilities:

(a) P(x=22)=P(x=22)=

equation editor

Equation Editor

(b) P(x≤23)=P(x≤23)=

equation editor

Equation Editor

(c) P(20≤x<22)=P(20≤x<22)=

equation editor

Equation EditorStep 1

Here the numbers are repeated twice. So consider the below table for further calculations.

Step 2

(a)

The value of P(x=22) is obtained below:

Step 3

(b)

The value of P(x≤23) i...

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