Activity 2. Solve. 1. In nursing home, 47 babies were given vitamin C to strengthen their immune system against viruses. 30 were given vitamin C of brand A and 41 were given vitamin C of brands B. How many were given both brands of vitamins?
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
![Figure 3
Activity 2. Solve.
1. In nursing home, 47 babies were given vitamin C to strengthen their immune system against viruses. 30 were given vitamin C of
brand A and 41 were given vitamin C of brands B. How many were given both brands of vitamins?
Solution
Since A UB = A+B-(An B)
Then AnB = A + B-(AUB)
Hence, A UB = 30 +41-40 = 31
Given: A=30
B=41
AUB=40
2. The home for the aged resident doctor reported that 150 of their aged residents had been experiencing fever for the
last 3 days. He said that they have been given medication but still no sign of improvement. He also added that 100 of
them were given medicine of brand Y and 89 were given medicine both in brand Y and Z. How many of the aged
residence were given medicine of brand Z only?
3. In a school canteen, 120 students ordered juices where 85 of them ordered grape juice. How many of the students
ordered non-grape juice?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd43658ac-9e64-4917-91f3-14e041a382e5%2F3ae9602b-4885-4bc2-9d34-4e0347af3ae4%2Fm396uvo_processed.jpeg&w=3840&q=75)
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