Hi There how are you doing ??? I Keep getting this wrong how can someone help me please ???

Homework: Sec 2.1 Score: 0 of 3 pts 3 of 5 (4 complete) X 2.1.18 Use the frequency distribution shown below to construct an expanded frequency distribution. High Temperatures ( F) Class 15-25 26-36 37-47 48-58 59-69 70-80 81-91 Frequency, f 17 41 68 69 76 68 26 Complete the table below. High Temperatures (F) (Round to the nearest hundredth as needed.) Class Frequency, f Midpoint Relative Cumulative frequency frequency 15-25 17 20 0.05 17 26-36 41 31 0.112 0.159 X One or more of your responses is incorrect. X Your answer for the midpoint is correct, but your answers for the relative frequency and cumulative frequency are incorrect. The relative frequency of a class is the portion or percentage of the data that falls in that class. To find the relative frequency of a class, divide the frequency f by the sample size n. The cumulative frequency of a class is the sum of the frequency for that class and all previous classes. The cumulative frequency of the last class is equal to the sample size n. OK