# xx18181919202021212222F(x)F(x)202033994444Let 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≥21 or x<19)=P(x≥21 or x<19)= equation editorEquation Editor (b) P(x≤21)=P(x≤21)= equation editorEquation Editor (c) P(x<22)=P(x<22)=

Question
 xx 1818 1919 2020 2121 2222 F(x)F(x) 2020 33 99 44 44

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≥21 or x<19)=P(x≥21 or x<19)=

equation editor
Equation Editor

(b) P(x≤21)=P(x≤21)=

equation editor
Equation Editor

(c) P(x<22)=P(x<22)=

Step 1

From the given frequency distribution, the corresponding probabilities are given in the below table.

Step 2

a).

The required probability can be obtained as follows.

Step 3

b).

The required probability can b...

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