Which of the following is the standard deviation of the random variable x, the number that appears on a die, if the probability of any number on a fair, 10-
sided die is 1?
O A. 5.2
O B. 2.872
O C. 3.028
O D. 0.1

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?