Answer:
Step-by-step explanation:
he;p me with mine first and then ill help u with urs ok plzzzzz
D. 28.5 %
The formula for it is
120
P(X ≤ 120) = ∑ 250C120 *0.5^120 * 0.5*130
0
which is best found using a binomial calculator.
I used one on line. The answer is D.
The 2nd root of 10, or 10 radical 2, or the square root of 10 is written as 2√10=√10=±3.162278.
