The answer is D. <span>No, it is not a valid inference because his classmates do not make up a random sample of the students in the school.</span>
Subtract Harmony Trail from Mountain Trail so 844-528=316
The probability of the event total is equal to the multiplication of the probabilities of the smaller events that conform it. So we have the probability of 1/2 for heads over tails, and 1/4 of blue out of 4 colors, therefore, the total probability is:
p = (1/2)(1/4)
p = 1/8
Answer:
23
Step-by-step explanation:
24-18+25-8
=6+17
=23
Hope it helps!
