Respuesta :

Answer:

0.2771

Step-by-step explanation:

This is a binomial probability question.  "Makes" is what some writers call a "success."  In the binomial probability distribution, the probability of  r  successes in  n  trials is

[tex]\binom{n}{r}p^r(1-p)^{n-r}[/tex]

p is the probability of "success."  [tex]\binom{n}{r}=\frac{n!}{r!(n-r)!}[/tex]

In this problem, n = 12,  r = 10, p = 0.87 (the 87%).

The probability of exactly 10 made shots out of 12 attempted is

[tex]\binom{12}{10}(0.87)^10(1-0.87)^2 =66(0.87^10)(0.13)^2 \approx 0.2771[/tex]