subject
Mathematics, 23.04.2020 04:35 pelaezaiden35

Most alpine skiers and snowboarders do not use helmets. Do helmets reduce the risk of head injuries? A study in Norway compared skiers and snowboarders who suffered head injuries with a control group who were not injured. Of 578 injured subjects, 96 had worn a helmet. Of the 2992 in the control group, 656 wore helmets. STATE: Is helmet use less common among skiers and snowboarders who have head injuries?

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 20.06.2019 18:02, kaileyy06
Quick! what is the area of this trapezoid?
Answers: 2
image
Mathematics, 21.06.2019 12:30, terrieldixon
The highest common factor of 132 and 220
Answers: 2
image
Mathematics, 21.06.2019 19:00, aylinkayla
In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.
Answers: 1
image
Mathematics, 21.06.2019 19:10, madimocaj
Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?
Answers: 2
You know the right answer?
Most alpine skiers and snowboarders do not use helmets. Do helmets reduce the risk of head injuries?...

Questions in other subjects: