1.The weights of a certain dog breed are approximately normally distributed with a mean of 50 pounds, and a standard deviation of 5.7 pounds. Use your graphing calculator to answer the following questions. your answers inpercentform. Round your answers to the nearest tenth of a percent.

a) Find the percentage of dogs of this breed that weigh less than 50 pounds.%

b) Find the percentage of dogs of this breed that weigh less than 48 pounds.%

c) Find the percentage of dogs of this breed that weigh more than 48 pounds.%

2.The patient recovery time from a particular surgical procedure is normally distributed with a mean of 6.8 days and standard deviation of 1.5 days. Use your graphing calculator to answer the following questions. your answers inpercentform. Round your answers to the nearest tenth of a percent.

a) What is the probability of spending less than 7 days in recovery?%

b) What is the probability of spending more than 5 days in recovery?%

c) What is the probability of spending between 5 days and 7 days in recovery?%

3.A distribution of values is normal with a mean of 62.4 and a standard deviation of 91.1.

FindP₄₉, which is the score separating the bottom 49% from the top 51%.

P₄₉=

Enter your answer as a number accurate to 4decimal places.

4.A distribution of values is normal with a mean of 16 and a standard deviation of 62.1.

FindP₁₇, which is the score separating the bottom 17% from the top 83%.

P₁₇=

Enter your answer as a number accurate to 4decimal places.

5.A distribution of values is normal with a mean of 202.1 and a standard deviation of 83.6.

FindP₂₈, which is the score separating the bottom 28% from the top 72%.

P₂₈=

Enter your answer as a number accurate to 4decimal places.