Answer:
4
Step-by-step explanation:
Scott has 6 words to memorize and he as done 2/3 of it, therefore the total number of words will be 2/3 of 6 = 4.
2/3 x 6 = 4

So the class must have at least 5 more students.
Answer:
24
Step-by-step explanation:
2;3;4;x
2x 3x =6x
six is equal to the x an. four
Answer:
The expected number of times is 4.
Step-by-step explanation:
Looking at the question, we see that this follows a geometric distribution because it is asking for the expected number of trials hat will bring about the FIRST SUCCESS. The probability of success is
Since it is a geometric distribution, we know that the expected value of a random variable X, E(X) that follows a geometric distribution is given as:
E(X) = 1/p where p is the probability of success.
Therefore, the expected number of times will be
E(X) = 1/(1/p) = 1/(1/4) = 4.
Hence, the expected number of times is 4.