Read each problem carefully. Show your complete solution and present

an illustration for each problem.

DIRECTIONS: Read each problem carefully. Show your complete solution and present an illustration for each problem. 1. A group of 5GB volunteers recorded an average tag of 21.5 years and standard deviation of 9.5 years. Assumed the distribution is normally distributed. Find the number of volunteers with ages less than 20 years. Find the number of vohmteers with ages greater than 22 years. it. Find the actual age of Roland if 35.31% ol' the volunteers are younger than him. II. If'i of the volunteers are older than Shirley how old is she? e. Between what ages is the middle 40% of the volunteers? 5"! I. The mean weight of 1mm students at a certain high school is 140 pounds and the variance is 1110 potmds. Assuming that the weights are normally distributed. how many students weigh: I. Elemeen 120 and 145 pounds? h. More than 150 pounds