The distribution of chequing account balances for customers at Independent Bank is known to be bell-shaped with a mean of $1800 and a standard deviation of $300. Given this information, the percentage of accounts with balances between $1500 and $2100 is approximately 95%.

Question

Quizplus · Accepted Answer

The percentage of accounts with balances between $1500 and $2100 is approximately 68%, not 95%, because these values are within one standard deviation from the mean in a normal distribution.

The Distribution of Chequing Account Balances for Customers at Independent