Asked by student

Use technology or a z-distribution table to find the indicated area.

The weights of grapefruits in a bin are normally distributed with a mean of 261 grams and a standard deviation of 9.4 grams.

Approximately 20% of the grapefruits weigh less than which amount?




239 g

247 g

253 g

261 g
Answered by R_scott
from a z-score table

the lower 20% is below ≈.842 σ