**He following are final grades for high school chemistry class**

1.) The following are final grades for high school chemistry class 65,68,94,96,82,96,74,60,75,60,98,66,89,83,80,80,99,100,62,85 Create a stem-and-leaf display of the data. You may use "|" (vertical bar) or ":" (colon) to separate the stems from the leaves.

(SHOW YOUR WORK) 2.) Find the mean, median, mode, and range for the given distribution. Give the value of the mean to the hundredths place. 7,5,3,8,10,7,7,5,8,10,7,3,13,8,7,7,3,5,8,7 (SHOW YOUR WORK) 3.) Assume that in your linguistics class you have earned

the test scores 86,77,50,and 60; and only one test remains. If you need a mean score of 70 to earn a "C", then what minimum score must you obtain on the last test? (SHOW WORK) 4.) Draw the box-and-whisker plot. The highest temperatures ever recorded in Degree

in 32 different U.S. states are shown below. Construct a box-and-whisker plot for the data. (SHOW WORK) 100 100 105 105 106 106 107 107 109 110 110 112 112 112 114 114 114 115 116 117 118 118 118 118 118 119 120 121 122 125 128 134 5.) The following are the

scores of 20 students who took a calculus exam. Find the mean and standard deviation of the given data. Round to the nearest tenth, if necessary. Score: 76 82 85 90 95 Frequency: 5 2 3 4 3 3 6.) Calculate the coefficient of variation based on the following

information (SHOW WORK) Standard Deviation Expected return Company A 13.67 22.5 Company B 12 26.2

**Category:**Mathematics, General Mathematics

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