The second showing had begun at 5:25. And there had been a 1/2 hour (30 minutes) break before it. So we substract this break from 5:25 and we get 4:55 - the time when the first showing had ended.
So the first showing had begun at 2:30 and had ended at 4:55. By substracting 2:30 from 4:55 we get 2:25 - that's the duration of the video.
The answer is 2 hours and 25 minutes.
M is less than or equal to -10 or greater than or equal to 10
Pretty sure you just add 80% and 20% to get 100%, hope this helps....
So we first have to find the mean: 41+ 38+19+ 30 +21+ 53+34+34 + 37+ 29+ 50 + 43+ 57+ 28+ 50 = 534 534/15 = 35.60
86+ 15+ 75+ 40+ 51+ 60+ 27+ 45+ 112+ 7+65+ 31+ 18+ 27+ 69 = 728728/15 = 48.53
Therefore, the store with the better representation of there data would be the competitor's store. This is because more money is being spent at the competitor's store which has an average of $49.00 when the owners store has an average of $36.00.
Hope this helps.
