The delivery time for a logistics truck company are normally…

The delivery time for a logistics truck company are normally distributed with a mean of 2.25 days and a standard deviation of 0.5 days. i)  What’s the probability that a delivery takes less than 3 days?    Round your answer to 3 decimal places. ii)  What’s the lowest delivery time for the top 10% (90th  percentile)?  Round your answer to 2 decimal places.

What percentage of female customers earn less than 70? Round…

What percentage of female customers earn less than 70? Round your answer to 2 decimal places. Enter your answer but don’t use % sign. (Example if the answer is 30.50% just enter 30.50 with no percent sign).  Hint: Use the contingency table you found in question #4.