The weight of bags of rice sold by a food retailer were classified as follows: Weight (kg) (x)

Number of bags

(f)

Estimate the Standard deviation of the bags in this shop:​

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15