The amount of electricity bills for all households in a city have a skewed probability distribution with a mean of $139 and A standard deviation of $30.Find the probability that the mean amount of electric bills for a random sample of 75 Households selected from this city will be between $132 and $136.

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi