The probability of a team winning the first game is 0.25. If it wins, the probability of winning the next game increases by 10%. If it loses,the probability of winning the next game increases by 20%. The team has to win in order to qualify for the next round. Determine the probability that the team wins in the third round.
Mathematics
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5 stepsPablo, wacha tuhesabu uwezekano wa timu kushinda mchezo wa tatu.
Bainisha uwezekano wa mchezo wa kwanza.
Uwezekano wa kushinda mchezo wa kwanza, .
Uwezekano wa kupoteza mchezo wa kwanza, .Bainisha uwezekano wa mchezo wa pili kulingana na matokeo ya mchezo wa kwanza.
- Ikiwa timu ilishinda mchezo wa kwanza (), uwezekano wa kushinda mchezo wa pili () huongezeka kwa 10% kutoka uwezekano wa awali wa 0.25.
Uwezekano wa kupoteza mchezo wa pili baada ya kushinda wa kwanza ni:
- Ikiwa timu ilipoteza mchezo wa kwanza (), uwezekano wa kushinda mchezo wa pili () huongezeka kwa 20% kutoka uwezekano wa awali wa 0.25.
Uwezekano wa kupoteza mchezo wa pili baada ya kupoteza wa kwanza ni:
Kokotoa uwezekano wa jumla wa kushinda au kupoteza mchezo wa pili.
Uwezekano wa kushinda mchezo wa pili, :
Uwezekano wa kupoteza mchezo wa pili, :
Bainisha uwezekano wa mchezo wa tatu kulingana na matokeo ya mchezo wa pili.
- Ikiwa timu ilishinda mchezo wa pili (), uwezekano wa kushinda mchezo wa tatu () huongezeka kwa 10% kutoka uwezekano wa awali wa 0.25.
- Ikiwa timu ilipoteza mchezo wa pili (), uwezekano wa kushinda mchezo wa tatu () huongezeka kwa 20% kutoka uwezekano wa awali wa 0.25.
Kokotoa uwezekano wa jumla wa kushinda mchezo wa tatu.
Uwezekano wa kushinda mchezo wa tatu, :
Uwezekano kwamba timu itashinda mchezo wa tatu ni 0.4075.
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