A random sample of 50 mathematics grades out of total of 200 showed a mean 75 and a standard deviation of 10. what are the 95% confidence limit for estimates of the mean of the 200 grades?​

Which of the following is a justification used while proving the similarity of triangles lom and mon

Arestaurant needs to buy thirty-seven new plates. if each box has five plates in it, how many boxes will they need to buy?

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation