Johnathan traveled at an average speed of 55 miles per hour for 3.5 hours and then traveled at an average speed at 60 miles per hour for 2.5 hours. What was the total distance in miles that Johnathan traveled during this time?

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

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.