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According to Experian, the average credit score of and American adult is 686 and the standard deviation of all credit scores of American adults is 67. Determine the following probabilities. Assume the distribution of all credit scores is normally distributed. Round solutions sto four decimal places, if ne If necessary.
Determine the probability that a randomly selected American adult has a credit score greater than or equal to 554,
P(z≥554)
Determine the probability that a randomly selected American adult has a credit score between 523 and 787.
P(523 <<787)
Sagot :
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