Question

Fifty seeds were selected at random from each of 5 bags of seeds,and were kept under standardised conditions favourable to germination.after 20 days,the number of seeds which germinated in each collection were counted and recorded as follows:

bags:1,2,3,4,5
no of seeds germinated:40,48,42,39,41
what is the probability of germination of:
1)more than 40 seeds in a bag?
2)49 seeds in a bag?
3)more than 35 seeds in a bag?

Answer 1

Q1. The answer is 0.6

There are in total 5 bags. Number of bags in which more than 40 seeds germinated is 3 (bag 2, bag 3, and bag 5). So the probability of germination of more than 40 seeds in a bag is:
P = 3/5 = 6/10 = 0.6


Q2. The answer is 0.

There are in total 5 bags. Number of bags in which 49 seeds germinated is 0.
So the probability of germination of 49 seeds in a bag is:
P = 0/5 = 0


Q3. The answer is 1.

There are in total 5 bags. Number of bags in which more than 35 seeds germinated is 5 (all of them).
So the probability of germination of more than 35 seeds in a bag is:
P = 5/5 = 1