About 32% of all the laptop computers sold in an electronics store have hard disks made by western digital, i. e., . in a specific shipment, a total of laptop computers are received. treat these 15 laptop computers as a random sample and use to denote the number of them with hard disks made by western digital in this sample. keep at least 4 decimal digits if the result has more decimal digits

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.