An article reported that for a sample of 41 kitchens with gas cooking appliances monitored during a one-week period, the sample
mean co2 level (ppm) was 654.16, and the sample standard deviation was 165.74. (a) calculate and interpret a 95% (two-sided) confidence interval for true average co2 level in the population of all homes from which the sample was selected. (round your answers to two decimal places.)
He will expect to reach base 35%*150 times, or .35*150=52.5 times. Although you cannot "reach base half of a time", this is the expected value for the amount of times he would reach base in this situation.
Let x denote the number of child tickets sold and y the number of adult tickets sold. The problem involves solving the following system of linear equations; x+y=132 and 5.2x+8.6y=931.2. Using technology to solve this simultaneous equation yields; x= 60, y =72
