The height below which 20% of the persons lie equals 169.95 cm
Step-by-step explanation:
Given that
Mean height = 175 cm
Standard deviation = 6 cm
Hence for the given question we need to find the standard variate factor ( Z factor) corresponding to the 20% of the area under the standard normal distribution curve
Using the standard normal distribution tables we have Z factor corresponding to an area of 20% equals ( Z = -0.84166)
1/2 is orange juice, 1/4 is grape juice, and the rest (1/4) 300 ml cherry juice. So 300 mL grape juice + 300 mL cherry=600 and the other half should be 600. 600+600=1200 mL of fruit punch.