Storm F4 Drysuit 10pts For Best Answer..plzz I Really Need Help!!!!!!?

10pts for best answer..plzz i really need help!!!!!!? - storm f4 drysuit

The next day was a team of meteorologists to assess the damage. They had the storm, classified as the extended Fujita scale:

F0 - F1 Low
F2 - F3 Strong
F4 - F5 Violent

This scale is used for storm damage to estimate wind speed. From 1950 to 1994, the population is classified by thunderstorms as follows:

Low 74%
With 25%
Severe 1%

For this reason, assume that this distribution of the tornadoes, we shall be valid in 2009. We have severe weather and visibility of a record 632 tornadoes in the month of May 2009 (surpassing the current record of 543 in May 2003). What is the expected number of tornadoes are not violent?