+ Save & Exit Certify Lesson: 2.1 Frequency Distributions Question 2 of 7, Step 5 of 5 5/21 Correct Consider the following frequency table representing the scores on a test. Scores on a Test Class Frequency 50–55 14 56-61 5 62–67 9 68–73 11 74–79 6 Step 5 of 5: Determine the number of scores between 49.5 and 79.5. ​

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

What is the slope of the equation y =

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?