In the population, 8% of males have had a kidney stone. suppose a medical researcher randomly selects two males from a large pop
ulation. let a represent the event "the first male has had a kidney stone." let b represent the event "the second male has had a kidney stone." true or false? a and b are independent events.
<span>The event that a "the first male has had a kidney stone" and b "the second male has had a kidney stone" is true. Random selection is used by the medical researcher in selecting two males from the population. Since simple random sample is defined as a subset of a statistical population wherein each member has an equal probability of being chosen, even if the probability is only 8%, males a and b may really have had a kidney stone. </span>
10% of energy moves on through each trophic level so if a chicken ate 10 pounds of a producer that would be equivalent to the fox eating 1 pound of chicken. (10 times .1 = 1)
