Assume you are trying to find the z-values that bracket the middle 68% on a Standard Normal Distribution curve. After drawing the curve and working a bit,
you find that the lower z-value is -0.99.
• What is the upper z-value that will bracket the area?

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9