MAT135 | Statistics in Mathematics - Lackawanna university

1. Look at the following data of high temperatures for 50 days. The highest temperature is 59 and the lowest temperature is 39. If we were to create a simple frequency distribution of this data we would have 21 temperature values. This is greater than 20 values so we should create a grouped frequency distribution.

Data Set - High Temperatures for 50 Days 57 39 52 52 43 50 53 42 58 55 58 50 53 50 49 45 49 51 44 54 49 57 55 59 45 50 45 51 54 58 53 49 52 51 41 52 40 44 49 45 43 47 47 43 51 55 55 46 54 41 If we use this data and follow the suggestions for creation of a grouped frequency distribution, we would create the following grouped frequency distribution. Note that we use an interval size of three so that each class interval includes three score values. Please complete the distribution below. (50) pts. Grouped Frequency Distribution for High Temperatures Class Interval Tally Frequency Percentages Central Angles Cumulative Frequency ////// 6 12% 6 54-56 /////// 7 13 51-53 22% ///////// 9 64.8 45-47 7 ////// 43.2 39-41 4 Totals