Answer :
Answer:
4.8
Step-by-step explanation:
If there's a 1/4 chance of getting one question right, then the mean number of correct answers would be (1/4)(19) or about 4.8
Answer:
4.8
Step-by-step explanation:
If there's a 1/4 chance of getting one question right, then the mean number of correct answers would be (1/4)(19) or about 4.8