Number of Students 10 Number of Magazines Sold 100 The table shows the amount of magazines sold for a fundraiser. What is the rate of change? 15 150 20 200 25 250

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2