1.The expression p(z<1.27 ) represents the area under the standard normal curve below the given value of Z.
What is P(z<1.27) ?
2.The weights of apples in a bin are normally distributed with a mean of 143 grams and a standard deviation of 4.2 grams.
Approximately 30% of the apples weigh less than which amount?
A. 133 G
d. 141 G