Answer:
0.25 is the required probability.
Step-by-step explanation:
We are given the following in the question:
Probability that like book 1 = 0.6

Probability that like book 2 = 0.5

Probability that Maria likes both the books = 0.4

We have to find the conditional probability that she will like book 2 given that she did not like book 1.
Thus, we have to evaluate:

0.25 is the conditional probability that Maria will like book 2 given that she did not like book 1.
Answer:
Remember that logarithms are inverse of exponentials. That means the result of the logarithm is equal to the exponent of a power with the same base.
<h3>1. (a)</h3>

Notice that the result is one beacuse 
<h3>(b)</h3>

Because 
<h3>(c)</h3>

So, 
<h3>2. </h3>
I would say to thim that
and
are variables of the logarithm, which be solved by imagine the logarithm as an exponential like

In other words, the
is the exponent and the
is the result of the exponential.
First you would find out how many words he types in 1 minute. Your answer for that is 51 words per minute. Now multiply that by 10 and that your answer. Your answer is 510 words in 10 minutes.
The control group and the experimental groups are not comparable. They are selected from different districts.