Areading list contains 3 historical books and 4 science-fiction books. what is the probability that tena will randomly choose a historical book for her first repost and a science-fiction book for her second?
a. 12/49

b.2/9

c.2/7

d.1 2/7

Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0)

Write 37/22 as a decimal rounded to the nearest hundredth.

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.