Calculate the sample standard deviation and sample variance for the following frequency distribution of final exam scores in a statistics class. if necessary, round to one more decimal place than the largest number of decimal places given in the data. final exam scoresclassfrequency56 - 641165 - 731574 - 821483 - 91492 - 10011

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Venita is sewing new curtains. the table below shows the relationship between the number of stitches in a row and the length ofthe row. sewingnumber of stitches length (cm)51 131532024306what is the relationship between the number of stitches and the length? othe number of stitches istimes the length. o. the number of stitches is 3 times the length.

Wrote and expression for the difference of p and 4