Mathematics, 09.12.2019 19:31, doll1234
The stem-and-leaf plot shows the ages of customers who were interviewed in a
survey by a store.
how many customers were older than 45?
ages of store customers
1| 0 2 3 3 6 8
2| 1 1 3 4 5 6 6 8 9
3| 2 2 4 4 4 5 7
4|1 2 3 3 5 8
5| 0 0 1 5 6
6| 2 4 5 5
7| 3
key: 1| 0 = 10
Answers: 1
Mathematics, 21.06.2019 18:30, gabrielaaaa1323
At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.
Answers: 2
Mathematics, 21.06.2019 20:00, Chen5968
The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
Answers: 2
The stem-and-leaf plot shows the ages of customers who were interviewed in a
survey by a store...
survey by a store...