A sample of one-year-old girls had a mean weight of pounds with a standard deviation of pounds. Assume that the population of weights is normally distributed. A pediatrician claims that the standard deviation of the weights of one-year-old girls is less than pounds. Do the data provide convincing evidence that the pediatrician's claim is true

Carla is saving money for a trip this summer. she already has some money in her savings account and will add the same amount to her account each week. at the end of 2? weeks, carla has? $130. at the end of 8? weeks, she has? $280. write a linear function in the form y=mx+b to represent the amount of money m that carla has saved after w weeks.

Gas is being pumped into a tank the total amount of gas g after amount of time t is given by the equation g= 50+20t if the total amount of gas that will fit into tank is 850 gallons how much time will take to fill the tank

In 1912, the original candidates for united states president were woodrow wilson and william h. taft. because of party disagreements, former president theodore roosevelt also decided to run and ended up splitting the vote with his fellow republican and incumbent, taft. in a certain state, the ratio of the popular vote of taft to roosevelt to wilson was approximately 35: 41: 63. if approximately 208,500 votes were cast in that state for the three candidates altogether, how many were cast for taft? a) 15,000 b) 45,000 c) 52,500 d) 69,500