Question

Calculate P(A1 I B2) given the following table.

A1 A2

B1 0.4 0.2

B2 0.1 0.3

Answer #1

**SOLUTION:**

From given data,

A1 | A2 | |

B1 | 0.4 | 0.2 |

B2 | 0.1 | 0.3 |

We know the formula for

P(A1 I B2) = P (A1 and B2) / P( B2)

Where,

P (A1 and B2) = 0.1

P( B2) = 0.1+0.3 = 0.4

By substituting the all values then we get,

P(A1 I B2) = P (A1 and B2) / P( B2)

P(A1 I B2) = 0.1 / 0.4

P(A1 I B2) = 0.25

The value for P(A1 I B2) = 0.25

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round to the 3rd decimal

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0.37
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It turns out that R forms a ring under the operations:
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