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The following two-way frequency table shows information collected from a survey of students regarding their grade level and how they spend their screen time.
Grade vs.
Screen Time Uses the
Internet Watches
TV Plays Video
Games Total
7th Grader 6 3 6 15
8th Grader 8 3 2 13
Total 14 6 8 28
What is the probability that a student uses the Internet, given that he or she is in eighth grade?

Enter your answer rounded to two decimal places, like this: 0.42

Enter your answer as a fraction in simplest form, formatted like this: 3/14

The probability that a student uses the Internet, given that he or she is in eighth grade is 8/13 or 0.66

Step-by-step explanation:

From the table shown:

P(student uses the Internet in eighth grade) = P(eighth grade students using internet) / P(total students in the eighth grade)

⇒ 8/13

⇒ 0.66

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

step-by-step explanation: