Respuesta :
use the identity:
P(A or B)=P(A)+P(B)-P(A and B)
Substitute given values,
0.88=0.62+0.47-P(A and B)
=>
P(A and B)=0.62+0.47-0.88=0.21
P(A or B)=P(A)+P(B)-P(A and B)
Substitute given values,
0.88=0.62+0.47-P(A and B)
=>
P(A and B)=0.62+0.47-0.88=0.21
Probabilities are used to determine the chances of an event
The value of P(a and b) is 0.21
The given parameters are:
P(a) = 0.62
P(b) = 0.47
P(a or b) = 0.88
P(a and b) is calculated using the following formula
P(a and b) = P(a) + P(b) - P(a or b)
So, we have:
P(a and b) = 0.62 + 0.47 - 0.88
P(a and b) = 0.21
Hence, the value of P(a and b) is 0.21
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