Hello, can you help me understand this and is this best used in excel?  Thank you!    The weights of Gala apples are normally distributed with a mean of 208 grams and a standard deviation of 28 grams.   Calculate the probability of selecting a Gala apple weighing less than 166 grams. Round your answer to 4 decimal places. The heaviest 10 percent of Gala apples weigh _____ grams or more. Round your answer to 1 decimal place. The middle 80 percent of Gala apples weigh between _____ and _____ grams. Round your answers to 1 decimal place.  Calculate the probability of selecting a Gala apple weighing between 146 and 244 grams. Round your answer to 4 decimal places. Calculate the probability of selecting a Gala apple weighing more than 294 grams. Round your answer to 4 decimal places. The lightest 5 percent of Gala apples weigh _____ grams or less. Round your answer to 1 decimal place.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Hello, can you help me understand this and is this best used in excel? 

Thank you! 

 

The weights of Gala apples are normally distributed with a mean of 208 grams and a standard deviation of 28 grams.

 

  1. Calculate the probability of selecting a Gala apple weighing less than 166 grams. Round your answer to 4 decimal places.


  2. The heaviest 10 percent of Gala apples weigh _____ grams or more. Round your answer to 1 decimal place.


  3. The middle 80 percent of Gala apples weigh between _____ and _____ grams. Round your answers to 1 decimal place.
     

  4. Calculate the probability of selecting a Gala apple weighing between 146 and 244 grams. Round your answer to 4 decimal places.


  5. Calculate the probability of selecting a Gala apple weighing more than 294 grams. Round your answer to 4 decimal places.


  6. The lightest 5 percent of Gala apples weigh _____ grams or less. Round your answer to 1 decimal place.
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