Answer:
0.0466
Step-by-step explanation:
For a random variable X which follows a binomial distribution:

Thus,

Answer:
p = -8
Step-by-step explanation:
Answer: after 3 seconds
when the ball hit the ground => - 5t² + 14t + 3 = 0
⇔ (5t + 1)(t - 3) = 0
⇔ t = 3 or t = -1/5
but t is a positive integer => t = 3
so the ball will hit the ground after 3 seconds
Step-by-step explanation:
Answer:
1514
Step-by-step explanation:
Answer:
0.08 or 8%
Step-by-step explanation:
to find probability, number of left handed/total
this would be (9+3)/(90+60), which simplifies to 12/150 = 0.08.