Answer:
i.e answer A.
Step-by-step explanation:
This question involves knowing the following power/exponent rule:
Next, when a power is on the bottom of a fraction, if we want to move it to the top, this makes the power become negative.
so the y-term, when moved to the top of the fraction, becomes:
So the answer is:
Answer: .
Step-by-step explanation:
Formula : Probability =
From the given frequency distribution for the class level of students in an introductory statistics course, we have
Number of Junior= 12
Number of Senior = 7
Total students = 6+16+12+7 = 41
Probability that the first student obtained is a junior =
Probability that the the second student obtained is a senior.
Then, the probability that the first student obtained is a junior and the second a senior would be
Hence, the required probability is .