Question

The weights of healthy adult male Labrador Retrievers are approximately Normally distributed with a mean of 77 pounds and a standard deviation of 6 pounds
A)Make an accurate sketch of the weights of Labrador Retrievers with the horizontal axis marked

B)What weight would represent the 25th percentile?

C)What weight would represent the 75th percentile?

D) What is the interquartile range of male Labrador weights?

E)What proportion of male adult Labrador retrievers weigh above 85 pounds?

F) What proportion of male adult Labrador retrievers weigh between 60 and 80 pounds?

G) What proportion of male adult Labrador retrievers weigh less than 65 pounds?

Answer 1

Answer:the photo is for part A.

B) the weight would be Invnorm(.25,77,6)=72.95

C)the weight would be 81.04 but this is the work invnorm(.75,77,6)=81.04

D)IQR=Q3-Q1

81.04-72.95=8.09

E)9.12 is the answer the work normalcdf(85,1000,77,6)=.0912

F).6892 or 68.92% are the answers the work normalcdf(60,80,77,6)=.6892

G).0227 or 2.27% is the answer and the work normalcdf(0,65,77,6)=.0227

Step-by-step explanation: