19.) The football coach randomly selected ten players and timed how long each player took to perform a certain drill. The times in minutes) were:
957 12 14
14 5 11 69
Find a 95% confidence interval for the population standard deviation .

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.