from a class of 15 undergraduate students and 6 graduate students, a committee of 4 students is chosen at random. how many committees of 4 students can be chosen

Ten times the square of a non-zero number is eqaul to ninety times the number

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)