Construct an ogive that represents the following data regarding the students' scores on a recent exam for a statistics class. exam scores class frequency 49.5–57.4 9 57.5–65.4 10 65.5–73.4 4 73.5–81.4 4 81.5–89.4 3 step 2 of 5 : find the upper class boundary for the third class.

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.