What type of graph is this?1)In a class test in mathematics, the scores of 20 students are: 8,9,8,7,4,3,5,6,8,3,6,8,8,7,7,5,9,6 ,8,7. (a)present the information in a frequency table. (b)Find the mode. (c)Calculate the mean score. (2)If the mean of 7, 9,11, 14, y, 15, 19, 21, 22, 29, and 34 is 18.Find the value of y.

Find percent notation for 0.008 0.008=

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with