Answer:
7x=11
Step-by-step explanation:
do it
Answer:
the time taken for the ball to hit the ground is 9.4s
Answer:
the second one
Step-by-step explanation:
the second one is the right answer
Both of these conditions must be true in order for the assumption that the binomial distribution is approximately normal. In other words, if
and
then we can use a normal distribution to get a good estimate of the binomial distribution. If either np or nq is smaller than 5, then a normal distribution wouldn't be a good model to use.
side note: q = 1-p is the complement of probability p