I'm struggling w this problem too

Refer to the accompanying data set and use the 30 screw lengths to construct a frequency distribution. Begin with a lower class limit of 1.220 in., and use a class width of 0.010 in. The screws were labeled as having a length of 1 1 /4 in. Click on icon to view the data. Complete the frequency distribution below. Length (in.) Frequency 1.220- (Type integers or decimals rounded to the nearest thousandth as needed.) Pa