What is the probability that a Starling chick will reach adulthood?
15 out of 100 Starlings reached adulthood so there is a 15/100 probability.
15/100 reduces to 3/20 as a fraction ( 0.15 as a decimal)
If you randomly pick a blackbird or crow chick, what is the probability it will reach adulthood?
Total number of blackbirds and crows = 415 + 230 = 645
Total that reach adulthood = 50 +30 = 80
Probability of reaching adulthood = 80/645, reduces to 16/129 as a fraction
( 0.124 as a decimal)
Which species has chicks with the greatest chance of reaching adulthood?
Starlings = 15/100 = 0.15
Cardinals = 3/15 = 0.2
Pigeons = 45 /325 = 0.138
Blackbirds = 50/415 = 0.12
Crows = 30/230 = 0.13
Cardinals have the highest chance.
Which species has chicks with the least chance of reaching adulthood?
Blackbirds have the lowest chance.
