Answer:
hi your question is incomplete here is the complete question attached to the answer is the probability distribution of the randomly chosen student
answer : 7.5
Step-by-step explanation:
The mean score of the probability distribution
= summation of (x * P(x) )
= ( 5* 0.05 ) + ( 6*0.16 ) + ( 7 * 0.32 ) + ( 8 * 0.26 ) + ( 9 * 0.13 ) + ( 10* 0.08)
= 0.25 + 0.96 + 2.24 + 2.08 + 1.17 + 0.8
= 7.5 the mean score is 7.5
This result means that the mean if more students were given the True -false quiz with 10 questions the mean score would still be 7.5
