Question

At Beleza Natural, one of the steps of the process is drying and styling, which include having cut and/or colored. 35% of the clients had their hair cut, which took an average of 20 min. Hairdresser spent 10 minutes with the customer while coloring the hair and only 15% of the customers chose to have their hair colored. Drying and styling the hair took 10 min on average and all the customers requested drying and styling. What is the expected activity time for this step of the process in Beleza Natural

Answer 1

18.50 minutes

Step-by-step explanation:

cutting and drying/styling

= 20 + 10 = 30 minutes

percentage = 35%

= 30 * 0.35 = 10.50

coloring and styling/drying

= 10 + 10 = 20 minutes

percentage = 15 percent

0.15 * 20 = 3.00

only dryind and styling

time = 10 minutes

probability = 1 - 0.15+0.35 = 0.50

0.50 * 10 = 5.00

the expected activity time for this process = 10.50 + 5.00 + 3.00

= 18.50