Rachel planted 10 flowers in 30 minutes. At this rate, how long would it take her to plant 50 flowers?

2 hours and 30 minutes

Step-by-step explanation:

360 different combinations

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.