Answer:
6
Explanation:
First, write the experimental probability as a fraction in simplest form.
P(convertible)
=
convertibles
total
=
4
1+1+4+3+1
=
4
10
=
2
5
The experimental probability is
2
5
.
We can predict the outcome of the second set of trials by assuming that the ratio will be the same as in the first set of trials. Write a proportion by setting the two ratios equal to each other, then solve.
2
5
=
n
15
2
5
(515)
=
n
15
(515) Multiply both sides by (515)
215
= 5n Simplify
30
= 5n Simplify
6
= n Divide both sides by 5
