Compare the ideas of adding and multiplying numbers with adding and multiplying matrices. Show examples of how they are similar and how they are different.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

See attachment below and find the equivalent of tan(∠qsr)

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample