Question 1

The binomial formula has two parts. The first part of thebinomial formula calculates the number of combinations of Xsuccesses. The second part of the binomial formula calculates theprobability associated with the combination of success andfailures. If N=4 and X=2, and p = .5, what is that probability fromthe second part of the formula?

Group of answer choices

.0625

.5

.3750

.1563

Question 2

Normal Distribution Problem. The birth weightis of newborn babies is approximately normally distributed with amean of 3.39 kg and a standard deviation of .55kg. Note: myprobabilities are exact probabilities. Solutions using the standardnormal table will be close.

Low birth rate babies are strongly associated with infantmortality and other complications. A baby that weighs less than2.5kg is considered low birthweight. What is the probability of ababy less than 2.5kg?

Group of answer choices

1 - .8944

.0125

.4472

.0528

Question 3

Normal Distribution Problem. The birth weightis of newborn babies is approximately normally distributed with amean of 3.39 kg and a standard deviation of .55kg. Note: myprobabilities are exact probabilities. Solutions using the standardnormal table will be close.

What is the probability of a baby born weighing less than3kg?

Group of answer choices

.7609

.5217

.2391

.2609

Question 4

Normal Distribution Problem. Red Blood CellCounts are expressed millions per cubic millimeter of whole blood.For healthy females, x has a approximately normal distribution withmu = 4.8 and sigma =.3. Note: my probabilities are exactprobabilities. Solutions using the standard normal table will beclose.

What is the red blood count at the 80^thpercentile?

Group of answer choices

4.6427

5.1000

5.0525

.5244

Question 5

Normal Distribution Problem. The birth weightis of newborn babies is approximately normally distributed with amean of 3.39 kg and a standard deviation of .55kg. Note: myprobabilities are exact probabilities. Solutions using the standardnormal table will be close.

What is the probability of a baby born weighing more than 5.00kg?

Group of answer choices

.0017

1 - .4983

2.927

.4983