Question

a stem - and - leaf plot for the number of touchdowns scored by all division 1a football teams is shown below. complete parts (a) through (c)
1|3 4 5 7 8 8 key 1|5 = 15
2|0 1 2 2 3 4 5 7 8 9
3|0 0 1 1 1 2 2 3 3 4 4 5 5 7 7 7 8 9
4|0 0 1 2 2 3 4 5 5 5 5 6 7 8 8 9
5|0 2 3 5 5 7 8
6|1 3 6 7
7|
8|7
(a) if a team is selected at random, find the probability the team scored at least 31 touchdowns. 517 (round to three decimal places as needed.)
(b) if a team is selected at random, find the probability the team scored between 40 and 48 touchdowns inclusive. 707 (round to three decimal places as needed.)
(c) if a team is selected at random, find the probability the team scored more than 78 touchdowns. 0.01 (round to three decimal places as needed.)
are any of these events unusual? select all the unusual events below. separate answers with commas if more than one choice is selected.
a
a. scoring more than 78 touchdowns is unusual.
b. scoring at least 31 touchdowns is unusual.
c. scoring between 40 and 48 touchdowns inclusive is unusual.
d. none of the events are unusual.

Explanation:

Answer:

(a) \(0.517\)
(b) \(0.207\)
(c) \(0.010\)
(d) A. Scoring more than 78 touchdowns is unusual.