Question

the mean and standard deviation of a normal distribution are 60 and 90 respectively then the upper quartile is ?​

Answer 1

Answer:

A joint is the part of the body where two or more bones meet to allow movement. Generally speaking, the greater the range of movement, the higher the risk of injury because the strength of the joint is reduced. The six types of freely movable joint include ball and socket, saddle, hinge, condyloid, pivot and gliding.