Infinitely many solutions.
Well how much does each ticket cost? More information and I can help you
Answer:

Step-by-step explanation:
Factor 4x2−7x−2
4x2−7x−2
=(4x+1)(x−2)
First, find the mean. You'll need it to compute the variance.

The variance of the sample is then computed with the formula

The standard deviation is the square root of the variance, so