Given are:
250 adults and 180 parents
so we can solve the number of not parents
not parents = 250 - 180
not parents = 70
then we can number of people of votes for no
no not parents = 70 - 40 = 30
no parents = 180 - 150 = 30
yes no
parents 150 30
not parents 40 30

5 0

3 years ago

The experimental probability of seeing a hawk at the Avian Viewing Center on any given day is 20%. If Allison visits the center

IgorC [24]

The experimental probability is, as the name suggests, a probability based on observation. If we say that the experimental probability of seeing a hawk at the Avian Viewing Center on any given day is 20%, it means that someone has visited the center for many days, and at the end of this experiment he has met hawks on 20% of the days, i.e. one out of five days.

If we assume that these measurement are trustworthy, we can assume that Allison will also see a hawk on one fifth of the days.

Since she will visit the center for 240, she should expect to see a hawk on one fifth of these days, i.e.

$\cfrac{240}{5} = 48$ days.