The results of a survey that asked 120 eighth graders if they prefer math or social studies are shown in the frequency table. Math Social Studies Total
Girls 37 31 68
Boys 43
9 52
Total 80 40
120
The relative frequency table includes some of the relative frequencies from the table.
Math Social Studies Total
Girls 0.31
Boys
_[blank]
Total 0.67
1.00
What is the relative frequency for the total number of boys in this survey, rounded to the nearest hundredth?
Enter your answer as the value that correctly fills in the blank in the table, rounded to the nearest hundredth, like this: 42.53

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.