In a certain city, the monthly electricity bills for the month of April followed a normal distribution with a mean of $65.43 and a standard deviation of $9.22. The number of households in the city is 261,500.
Rounded to the nearest hundred, what is the expected number of households that paid between $50 and $70?
A)
91,100
B)
130,600
C)
168,100
D)
248,200