Answer:
0.2460 is the required probability.
Step-by-step explanation:
We have been given binomial model
n is the total number of questions which is 10
x is the questions taken out to be which is 5
p is the probability of right answers which is :
q is the probability of the false answers which is :
We will use the model by substituting the values we get:
on substituting the values we get:
Cancel out the common terms from numerator and denominator we get: