Average

Car sales in four consecutive months are given as 70, 68, 82, 95. Exponentially smoothing average method with a smoothing factor of 0.4 is used in forecasting. The expected no. of forecasted car sales in the next month is

While finding the average marks of the class, marks of one student were wrongly entered as 93 instead of 63 resulting to an increase in the average by 0.5 mark. The number of students in the class is.