What is the Variance of

5.6,5.2,4.6,4.9,5.7,6.4?

What is the value of p in the equation y^ = -4x?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

What graph represents an even function