The table shows information about the numbers of hours 30 children
spent on their tablets one evening.
Number of hours (h) Frequency
0 << 1
4
1 < < 2
8
2 11
3 7
a) Find the class interval that contains the median.
b) Work out an estimate for the mean number of hours.

ryan had a head start of 10 meters.

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.

answer: you need to organize this better it does not make sense.

step-by-step explanation: ?