Determine the group sample standard deviation and variance for the following frequency distribution table. Classes Frequency
​10-19 5
​20-29 11
​30-39 7
​40-49 3
​50-59 8

Evaluate the expression. (9 + 5)(3 + 2)0

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x

Ken earned $128 from his part-time job this summer. he spent 25% of his money on games. he is going to donate 1/6 of the remaining money to charity. how much money will the charity receive?